June Quick Poll #1: Esports fans, tell us how you browse roster shuffles and off-seasons (and what frustrates you about it!)

Io

From Liquipedia Dota 2 Wiki
Io
19 + 3
14 + 1.6
21 + 1.7
Grants the following bonuses per level:
+66HP and +0.3HP regeneration
+0.27 armor and 1.6 attack speed
+20.4MP and +0.085MP regeneration
+0.1% base magic resistance
+2.84 Main Attack Damage
Show/Hide Tooltips
3.33
Armor
(645.49 EHP)
27.1%
Magic Resist
(738 EHP)
1200
Projectile Speed
Melee Melee units have their projectile speed set to 900, if they should ever need it.
100 (114)
(1.7 BAT)
Base Attack Time Attacks per Second is defined as
ΣAS / BAT / 100
0.3 + 0.4
Turn Rate This unit takes 0.15s to turn 180°.
This ability component has a different effect during daytime. 1800 / This ability component has a different effect during nighttime. 800
Ethereal
Gib Type
2012-06-28
Released
2010-07-24
Competitive Span
2012-07-05 — 2019-01-29
2019-05-24 — Present
Version Control
This article is mostly accurate for 7.41c, the last version this hero was changed in.

New interactions that emerged in following patches may have not yet been accounted for.
Show/Hide Tooltips
Links to its allies to buff them.
The phenomenon that is Io manifests on the physical plane as a wisp of light, its purpose beyond mortal understanding. Accompanied by complementary Spirits that roam around the wisp at its will, it flits to and fro the battlefield, searching for an ally to Tether to. Those blessed with Io's bond feel their feet lighten as the Wisp channels its own regenerative powers into their body. Should its host falter, Io begins to Overcharge, augmenting that ally's speed while strengthening his resolve. As a force unbound by the laws of corporeal space, Io is able to temporarily Relocate itself and an ally to any point in the world, often saving a companion from certain death.
Equilibrium
Equilibrium
Tether
Tether
Spirits
Spirits
Overcharge
Overcharge
Spirits In
Spirits Out
Relocate
Roles:Support Support Escape Escape Nuker Nuker
AdjectivesBlue, Flying
Legs ( 0 )

Bio

[edit]
Beep Boop
▶️  Io, the Wisp
Io is everywhere, and in all things. Denounced by enemies as the great unmaker, worshiped by scholars as the twinkling of a divine eye, this strange Wisp of life-force occupies all planes at once, the merest fraction of its being crossing into physical existence at any one moment.

Like the great twin riders Dark and Light, and yet another ancient traveler whose true history is lost to the ages, Io the Wisp is a Fundamental of the universe, a force older than time, a wanderer from realms far beyond mortal understanding. Io is nothing less than the sum of all attractive and repulsive forces within the material field, a sentient manifestation of the charge that bind existence together. It is only in the controlled warping of these electrical waylines that Io's presence can be experienced on the physical plane. A benevolent, cooperative force, Io bonds its strange magnetism to others so that the power of allies might be enhanced. Its motives inscrutable, its strength unimaginable, Io moves through the physical plane, the perfect expression of the mysteries of the universe.
Voice:
Itself (Responses)

Upgrades

[edit]

Aghanim's

[edit]
Upgradable by Aghanim's Scepter.
Aghanim's Scepter Upgrade:
Spirits
Spirits now passively spawn, orbits and replenishes itself around Io constantly.

Applies movement speed slow to enemy heroes coming in contact with.

Reduces cooldown, and now causes Spirits to immediately explode upon cast.
Upgradable by Aghanim's Shard.
Aghanim's Shard Upgrade:
Tether
Additionally deals damage per second to enemy units upon coming in contact with the Tether, and self-heals for a portion of the damage dealt.

Talents

[edit]
x0.5 Tethered Ally Instant Attack Instant Attack Factor25-2s Relocate Cast Delay
-30s Relocate Cooldown20+0.2% Overcharge Max Health as Health Regen Bonus
+50 Spirits Hero Damage15+5% Tether Movement Speed
+8 Strength10+1.5s Overcharge Duration
▃ ▃ ▃ ▃ ▃ ▃ ▃
+2 All / / Attributes

Innate. Innate

[edit]

Equilibrium

[edit]
Equilibrium
This ability can be bestowed by Illusions. Neither affected nor disabled by Break.
Ability
Passive
Affects
Self
Grants a greater outgoing damage amplification the closer Io is to full health.
Max Health to Max Damage Amp Threshold: 100%
Max Damage Amp: Affects the outgoing ability value positively of the affected unit. 4%
Hero Innate Ability
Innate Properties
Additionally grants a greater health restore amplification and heal amplification the closer Io is to zero health.
Max Health to Max Heal Amp Threshold: 1%
Max Heal Amp: Affected by Heal Manipulation sources. 4%
Max Health Restore Amp: Utilizes Health Regeneration. Affected by Health Restore sources. 4%
Hero Innate Ability
Innate Properties
The higher Io's level, the greater the amplification values granted.
Max Damage Amp Increase: +This ability component scales with Hero Levels. 0.4%
Max Heal Amp Increase: +This ability component scales with Hero Levels. 0.4%
Max Health Restore Amp Increase: +This ability component scales with Hero Levels. 0.4%
Details
    • Checks for Io's current health per The game server ticks at 0.033-seconds. This is how often Dota2 sends data between server and client.The game server ticks at 0.033-seconds. This is how often Dota2 sends data between server and client. server tick.
    • The values increase and reduce linearly per 0.1% current to max health ratio. However, for wiki calculation purposes, the ability values are represented in 10% ratios.
    • Ability values reducing per determined increments.
      • Reduces the total Affects the outgoing ability value positively of the affected unit. outgoing damage damage by 0.404% + This ability component scales with Hero Levels. 0.04% per 10% max health gain.
    • Ability values increasing per determined increments.
      • Increases the total Affected by Heal Manipulation sources. heal amplification and health restore amplification by 0.404% + This ability component scales with Hero Levels. 0.04% per 10% max health loss.

Hero Model

[edit]
Hero Model
This ability can be bestowed by Illusions. Neither affected nor disabled by Break.
Ability
Passive / Channeling
Affects
Self
Io's hero model has the following hidden Innate. innate abilities.

It may only perform or utilize the ability's functions upon a successful channeling.
Hero Innate Ability
Innate Properties
Io is considered a ground unit, despite its hero model showing otherwise.
Hero Innate Ability
Innate Properties
Io's facing direction is a mystery. However, if you watch closely, the facing direction is marked by an arc-like effect.
Effect Distance: 256
  • Details
  • Status Effects
  • Show All
Hidden Innate Abilities
Watch Tower
Warp
Warp
Lantern of Sight
Tap on the Innate. innate abilities for more details.
  • The ability's visual effects. Buff wisp_tentacles
    • Causes Io to have several tentacle-like effects that palpate any visible units within -distance of it.
    • The effect randomly switches between units every few seconds.
      • Has no gameplay impact.
Buff modifier_wisp_tentaclesUndispellable.
Hidden Modifier

Abilities

[edit]

Tether

[edit]
Ability
Unit / Passive
Affects
Self / Units
Damage
Instant Attack / Physical
Tethers itself to an allied unit.

The link breaks when either the tethered-ally moves too far away, or Io cancels it.
Cast Animation: 0 + 0
Cast Range: Affected by Cast Range increasing sources. 1600
Break Distance: Affected by AoE Radius increasing sources. 1000
Pull Distance: 700
Break Distance During Pull: 2150
Tether Duration: IndefiniteIndefinite
Grants bonus movement speed to both Io and the tethered-ally while active.

Whenever Io restores health or mana, the tethered-ally gains a bonus portion of the restoration.
Ally Heal Factor: Affected by Heal Manipulation sources. 0.55/0.75/0.95/1.15
Ally Mana Restore Factor: Affected by Mana Restore Manipulation sources. 0.55/0.75/0.95/1.15
Ally Move Speed Bonus: 6%/8%/10%/12% (With level 15 Right Talent.With level 15 Right Talent. 11%/13%/15%/17%)
The link between Io and the affected allied unit applies a brief slow to enemy units coming in contact.
Move Speed Slow: 10%/20%/30%/40%
Attack Speed Slow: 10/20/30/40
Talent Upgrade
Io instant attacks the tether-affected ally's attacking target upon learning a certain talent.
Instant Attack Damage Factor: 0.5
Aghanim's Shard Upgrade
Aghanim's Shard Upgrade
Additionally deals damage per second to enemy units upon coming in contact with the Tether, and self-heals for a portion of the damage dealt.
Damage per Second: (Upgradable by Aghanim's Shard. 120)
Heal Factor: Utilizes Lifesteal. Affected by Health Restore sources. (Upgradable by Aghanim's Shard. 0.5)
12
Mana Cost
40
The benevolent touch of Io brings strength from between the planes.
  • Details
  • Interactions
  • Status Effects
  • Misc.
  • Show All
  • This ability has three main components:
    • 1 O Q The affected ally unit(s).The affected ally unit(s). P
      • OQ = MaxPullDistance = 700
      • QP = 300
      • Cannot be cast the following units:
      • The ability effects are applied as follows when cast on the The ability's unit-targeted properties. unit-targeted ally within the Affected by AoE Radius increasing sources. break distance (OP):
        1. The unit is forcefully moved in the x-axis accordingly to its facing direction. to The ability's link properties.
          • Applies a 1000-speed forced movement until Io latches to the The ability's unit-targeted properties. unit-targeted ally P .
          • Can pull Io over There are six different terrain height levels that have gameplay relevance.There are six different terrain height levels that have gameplay relevance. impassable terrain and does not destroy trees.
          • The break distance is defined as:
            • EXPR
              CastRange ≥ | IoPosition - AllyPosition | ≥ 700
          • Additionally, the pull component ends immediately in the following conditions:
            • EXPR
              | IoPosition - AllyPosition | ≥ 2150 after casting the ability.
            • Other offensive The unit is forcefully moved in the x-axis accordingly to its facing direction. forced movement applied on Io before latching to the The ability's unit-targeted properties. unit-targeted ally P .
        2. The unit is forcefully moved in the x-axis accordingly to its facing direction.
          • The forced movement component no longer applies upon reaching point Q , the ally latch distance.
          • Trees are a prominent feature in the game!Trees are a prominent feature in the game!
            • Trees within 350-radius centered around Io are destroyed when the pull ends.
        3. The ability's link properties. The affected ally unit(s).The affected ally unit(s).
        4. This ability component affects the caster themselves.This ability component affects the caster themselves. Movement Speed
          • Sets Io's movement speed as follows:
          • This unit moves very fast, and cannot be slower than the designated movement speed. Haste movement sources still has precedence over set movement speed sources.
            • Both flat and percentage-based movement speed sources no longer affects Io while Tether is active.
            • Movement speed slow sources affecting the ally does not affect Io's set movement speed.
        5. Debuff wisp_tether_slow to The affected enemy unit(s).
          • Applies both the Movement Speed movement speed slow and attack speed slow to all enemy units in 0.1-second intervals, starting 0.1 seconds upon debuff application, within ≈55-distance of the link.
          • Adds a Magical Damage Type magical Spell DamageSpell Damage spell damage component to the link.
            • Deals 60 spell damage (before reductions) in 0.5-second intervals, starting 0.5 seconds upon debuff application.
            • This ability component affects the caster themselves.This ability component affects the caster themselves.
              • The Utilizes Lifesteal. Affected by Health Restore sources. lifesteal-based heal value is applied on Io after reductions within the same intervals, and is defined as:
                • EXPR
                  Heal = 30 × DmgManipulation
    • 2 The projectile's link properties.
    • 3 to The affected ally unit(s).The affected ally unit(s). AttackAttack
Ability interactions with Morph.
Immediately breaks upon losing ability and upon Morph cast.
Ability interactions with Spell Steal.
Immediately breaks upon losing ability.
Buff modifier_wisp_tetherOnly dispellable by Death.Only dispellable by Death.
Tethered: Movement speed matched to and giving regen to tethered target.
MODIFIER_PROPERTY_MOVESPEED_ABSOLUTE
MODIFIER_PROPERTY_INCOMING_DAMAGE_PERCENTAGE
MODIFIER_EVENT_ON_ATTACK
MODIFIER_EVENT_ON_TAKEDAMAGE
MODIFIER_EVENT_ON_MANA_GAINED
MODIFIER_EVENT_ON_HEAL_RECEIVED
Buff modifier_wisp_tether_hasteOnly dispellable by Death.Only dispellable by Death.
Tethered: Movement speed increased by x% and getting health and mana regen from Io.
MODIFIER_PROPERTY_PREATTACK_BONUS_DAMAGE
MODIFIER_PROPERTY_MOVESPEED_BONUS_PERCENTAGE
Debuff modifier_wisp_tether_slowDispellable by any Dispel sources.
Tether: Movement speed decreased by x% and attack speed decreased by x.
MODIFIER_PROPERTY_MOVESPEED_BONUS_PERCENTAGE
MODIFIER_PROPERTY_ATTACKSPEED_BONUS_CONSTANT
MODIFIER_PROPERTY_TOOLTIP
  • The ability's visual effects.
    • The link visual appearance changes beyond ≥ 700-distance between Io and the Tether-affected allied unit.
    • The link changes color at 700-distance and jiggles at 800-distance.
  • If either Io or the ally is Enemy units cannot see you, unless they have True Sight.Enemy units cannot see you, unless they have True Sight. invisible, enemy units can only see a fake link leading to the invisible unit's last known location.
    • However, if the allied unit is visible to the enemy, they will be able to see the unit tethered.
    • This ability component affects the caster themselves.This ability component affects the caster themselves.
      • For This bonus/reduction source only affect Melee heroes.This bonus/reduction source only affect Melee heroes. melee units, if the enemy target is 350 range farther than the attacker's range, the attack will Evasion miss regardless.
    • The affected enemy unit(s).
      • Does not update the ability components' values that affect enemy units.

Break Tether

[edit]
Q
T
Break Tether
Casting this ability does not proc any on-cast effects.
Affects
Self
Breaks the link to the tether-affected allied unit.
The sub-ability has a downtime upon Tether cast.
Downtime: 0.25
1
Details

Spirits

[edit]
Ability
No / Passive
Affects
Enemy Units
Damage
Spell / Magical
Summon a number of particles that orbit around Io. If a particle collides with an enemy hero, it explodes and damages all enemy units within the radius.

When its duration ends, all remaining particles explode.
Number of Spirits: 5
Hero Search Radius: Affected by AoE Radius increasing sources. 110
Explosion Radius: 360
Explosion Damage: 30/50/70/90 (With level 15 Left Talent.With level 15 Left Talent. 80/100/120/140)
Duration: 15 (Upgradable by Aghanim's Scepter. Indefinite (with Aghanim's Scepter))
Move Speed Slow: (Upgradable by Aghanim's Scepter. 25%)
Slow Duration: (Upgradable by Aghanim's Scepter. 0.3)
The particles' damage is less effective on creeps, but they do not explode upon collision.
Creep Collision Radius: Affected by AoE Radius increasing sources. 150
Collision Damage: 10/15/20/25 (With level 15 Left Talent.With level 15 Left Talent. 60/65/70/75)
Aghanim's Scepter Upgrade
Aghanim's Scepter Upgrade
Spirits now passively spawn, orbits and replenishes itself around Io constantly.

Applies movement speed slow to enemy heroes coming in contact with.

Reduces cooldown, and now causes Spirits to immediately explode upon cast.
Spirit Spawn Interval: (Upgradable by Aghanim's Scepter. 1)
15 (Upgradable by Aghanim's Scepter. 7.5)
Mana Cost
90/100/110/120
Io twists the particles of the universe with its unimaginable capabilities.
  • Details
  • Interactions
  • Status Effects
  • Misc.
  • Show All
  • The ability effects are applied as follows:
    1. Io's Spirits Clockwise
      • Creates each spirit P in 1-second intervals, starting immediately upon cast or passively, up to the max number of spirits, logarithmically spiraling clockwise outward 650-distance from Io's current location, point O , and reaches its revolution orbit S .
        • OS = MAXDistance = 650
      • The first spirit (P) is always created in front of Io's facing angle, with subsequent spirits (P') created behind the first.
        • All spirits keep an equal distance from each other, and are centered on Io upon cast for the entire duration.
        • Moving the Spirits In to Circle R or Spirits Out within Circle S do not break their formation.
      • The ability's visual effects.
        • All spirits not visible to the enemy if Io is Enemy units cannot see you, unless they have True Sight.Enemy units cannot see you, unless they have True Sight. invisible.
    2. Magical Damage Type Spell DamageSpell Damage to The affected enemy unit(s).
      • Checks for the following conditions within the collision radius:
        • to
          • Applies the collision magical spell damage to creeps within the creep collision radius B .
          • This ability component considers Illusion Properties. illusions and creep-heroes as creeps.
          • The spirits do not explode, and continues revolving within the orbit in this situation.
        • to Enemy Heroes
          • Applies the explosion magical spell damage to enemy heroes within the hero explosion radius if there are enemy heroes within the hero search radius P .
          • This ability component considers Clones are identical to the main hero, with certain exceptions. clones and the Spirit Bear as heroes.
        • All ability components do not affect the following units:
    3. Upgradable by Aghanim's Scepter. to Enemy Heroes
      • Applies the Debuff wisp_spirits_slow debuff upon proc within the explosion radius.
    4. Io's Spirits
      • Remaining spirits explodes simutaneously at the end of the Buff wisp_spirits duration.
      • Recasting and reapplying the buff causes the current created spirits to immediately explode.
        • The active component now is akin to recasting the ability upon cast.
Ability interactions with the caster's illusions.
Upgradable by Aghanim's Scepter. Non-functional.
Ability interactions with Spell Steal.
Both Spirits In and Spirits Out This ability functionally supplements its parent ability.This ability functionally supplements its parent ability. sub-abilities now occupies Stolen Spell 1 and Stolen Spell 2 respectively upon cast or upon acquring the ability with the Upgradable by Aghanim's Scepter. ability upgrade.
This ability functions differently or requires certain conditions in Ability DraftThis ability functions differently or requires certain conditions in Ability Draft
Replaces by both Spirits In and Spirits Out This ability functionally supplements its parent ability.This ability functionally supplements its parent ability. sub-abilities upon cast. These 3 abilities share a single ability slot.

Right-Click Right-click toggles between both sub-abilities.
Buff modifier_wisp_spiritsOnly dispellable by Death.Only dispellable by Death.
Spirits: Surrounded by friendly spirits.
MODIFIER_EVENT_ON_DEATH
Debuff modifier_wisp_spirits_slowDispellable by any Dispel sources.
Spirits Slow: Move speed slowed by x%.
MODIFIER_PROPERTY_MOVESPEED_BONUS_PERCENTAGE
  • Io's Spirits Clockwise
    • Has the following unit additional properties:
      • All spirits complete a revolution per 2.7 seconds regardless of its distance from Io.
        • Hence, P can rotate at most 5 times around Io.
      • The spirits' angular velocity is constant. The further the distance from Io, the faster the spirits' speed.
  • Acquiring the Upgradable by Aghanim's Scepter. ability upgrade while active creates new spirits, the previous active spirits disappear without exploding.
    • The ability's visual effects.
      • The spirits does not have a The unit is dead and is ressurected after its respawn time. Certain abilities are dispellable upon death only.The unit is dead and is ressurected after its respawn time. Certain abilities are dispellable upon death only. death animation. Hence, when losing the ability upgrade, the current spirits just simply disappears.
    • If the spirits do not collide with an enemy hero more than 6 seconds, the next explosion will deal twice the damage.
      • This is because once the spirit collides and explodes, the newly spawned spirit immediately takes its place, and collides with the enemy hero again.

Spirits In

[edit]
D
D
Spirits In
Casting this ability does not proc any on-cast effects.
Ability
Toggle
Affects
Self
Calls and attracts in all the particle-like spirits to the Fundamental.
Min Distance: 200
Spirits Speed: 250
Aghanim's Scepter Upgrade
Aghanim's Scepter Upgrade
As the spirits now permanently orbits the Fundamental, it keeps the ability to call and attract in all the particle-like spirits.
  • Details
  • Misc.
  • Show All
  • This ability component affects the caster themselves.This ability component affects the caster themselves.
    • Does not interrupt Io's Requires unit to stand still for certain ability effects to occur.Requires unit to stand still for certain ability effects to occur. channeling abilities upon cast.
  • Io's Spirits
    • Moves the spirits towards Io at 250-speed.
    • The spirits take Affected by AoE Radius increasing sources. 1.8 seconds from moving the spirits from max to min distance.

Spirits Out

[edit]
F
E
Spirits Out
Casting this ability does not proc any on-cast effects.
Ability
Toggle
Affects
Self
Sends and repulses out all the particle-like spirits from the Fundamental.
Max Distance: Affected by AoE Radius increasing sources. 650
Spirits Speed: 250
Aghanim's Scepter Upgrade
Aghanim's Scepter Upgrade
As the spirits now permanently orbits the Fundamental, it sends and repulses these particles as the wisp wishes.
  • Details
  • Misc.
  • Show All
  • This ability component affects the caster themselves.This ability component affects the caster themselves.
    • Does not interrupt Io's Requires unit to stand still for certain ability effects to occur.Requires unit to stand still for certain ability effects to occur. channeling abilities upon cast.
  • Io's Spirits
    • Moves the spirits outward Io at 250-speed.
    • The spirits take Affected by AoE Radius increasing sources. 1.8 seconds from moving the spirits from min to max distance.

Overcharge

[edit]
E
V
Overcharge
Affects
Self / Allied Units
Grants self max health as bonus health regeneration, attack speed bonus, and outgoing spell damage amplification.
Max Health as Health Regen Bonus: 0.5%/0.6%/0.7%/0.8% (With level 20 Right Talent.With level 20 Right Talent. 0.7%/0.8%/0.9%/1%)
Attack Speed Bonus: 35/60/85/110
Spell Damage Amp: Affects the outgoing ability value positively of the affected unit. 8%/10%/12%/14%
Duration: 8 (With level 10 Right Talent.With level 10 Right Talent. 9.5)
Hero Innate Ability
Innate Properties
Grants the tethered allied unit all Overcharges' ability effects as well.
25/22/19/16
Mana Cost
40/60/80/100
Drawing on the energy of matter from all worlds, Io begins the unravelling of time.
  • Details
  • Status Effects
  • Show All
  • Buff wisp_overcharge
    • to This ability component affects the caster themselves.This ability component affects the caster themselves.
    • to The affected ally unit(s).The affected ally unit(s).
      • Transfers all current ability effects to the current Tether-affected allied unit.
        • Io does not need to be tethered to the allied unit to transfer Overcharge. Tethering afterward transfers it as well.
        • Appears as a permanent buff on the affected ally.
          • The max health as bonus health regeneration immediately update the current Overcharge instance, but not the current Tether instance.
  • Applies a generic Affects the outgoing ability value positively of the affected unit. outgoing damage amplification on Io.
    • Stacks additively with other incoming damage manipulation sources.
    • Does not affect HP Removal sources.
Buff modifier_wisp_overchargeOnly dispellable by Death.Only dispellable by Death.
Overcharged: Attack speed increased by x, and x HP Regen.
MODIFIER_PROPERTY_ATTACKSPEED_BONUS_CONSTANT
MODIFIER_PROPERTY_SPELL_AMPLIFY_PERCENTAGE
MODIFIER_PROPERTY_PHYSICAL_ARMOR_BONUS
MODIFIER_PROPERTY_MAGICAL_RESISTANCE_BONUS
MODIFIER_PROPERTY_HEALTH_REGEN_CONSTANT
MODIFIER_PROPERTY_MAGICAL_LIFESTEAL
Buff modifier_wisp_overchargeOnly dispellable by Death.Only dispellable by Death.
Overcharged: Attack speed increased by x, and x HP Regen.

Relocate

[edit]
Ability
Point
Affects
Self / Allied Heroes
Teleports Io to any location globally.

Upon the duration expires, Io will return to the original ability cast location.
Effect Delay: 3.5/3.25/3 (With level 25 Right Talent.With level 25 Right Talent. 1.5/1.25/1)
Duration: 12
Teleports the tethered allied unit alongside with Io.

Upon the duration expiring, Io and the tethered allied unit will return to the original ability cast location.
90/80/70 (With level 20 Left Talent.With level 20 Left Talent. 60/50/40)
Mana Cost
175
Io is the embodiment of the mystery of the universe.
  • Details
  • Interactions
  • Status Effects
  • Misc.
  • Show All
The aforementioned abilities are considered This ability directly moves the affected unit(s) to a certain coordinates. teleport sources.
  • The ability effects are applied as follows:
    1. This ability directly moves the affected unit(s) to a certain coordinates. to The ability's point-targeted properties.
      • 3.5/3.25/3 (With level 25 Right Talent.With level 25 Right Talent. 1.5/1.25/1) seconds after casting, teleports both Io and the Tether-affected allied hero's to the point-targeted location
      • For Units affected by Silence sources cannot cast abilities. Does not affect items. silence sources, the teleport component does not happen if Io is affected as the effect delay finishes.
      • The effect delay reducing With level 25 Right Talent.With level 25 Right Talent. talent does not update the current instance.
        • This ability component affects the caster themselves.This ability component affects the caster themselves.
        • The affected ally unit(s).The affected ally unit(s).
          • Interrupts the affected allied hero's Requires unit to stand still for certain ability effects to occur.Requires unit to stand still for certain ability effects to occur. channeling abilities.
          • Does not disjoint incoming projectiles.
    2. Trees are a prominent feature in the game!Trees are a prominent feature in the game!
      • Trees within 350-radius centered around both Io and the allied hero are destroyed upon teleporting.
    3. The ability has a countdown timer or has a value counter component. to This ability directly moves the affected unit(s) to a certain coordinates.
      • Relocates back to the original location once the Buff wisp_relocate_return duration expires.
        • Interrupts both Io and the affected allied hero's Requires unit to stand still for certain ability effects to occur.Requires unit to stand still for certain ability effects to occur. channeling abilities.
        • Does not disjoint incoming projectiles.
        • This unit is affected by a disable. to The affected ally unit(s).The affected ally unit(s).
          • The aforementioned disable sources applied on either Io or the Tether-affected allied hero does not prevent the relocate component from happening if Io successfuly teleports.
      • Affects the following units:
      • The ability's visual effects.
        • The countdown ability effects is visible to everyone.
    4. Trees are a prominent feature in the game!Trees are a prominent feature in the game!
      • Trees within 350-radius centered around both Io and the allied hero are destroyed upon relocating back.
Ability interactions with Root sources.
Root sources does not prevent the ability cast.
Buff modifier_wisp_relocate_thinkerUndispellable.
On Hidden Entity
Buff modifier_teleportingOnly dispellable by Death.Only dispellable by Death.
Teleporting
MODIFIER_EVENT_ON_TELEPORTED
Buff modifier_wisp_relocate_returnOnly dispellable by Death.Only dispellable by Death.
Return: About to return to previous location.
  • This ability directly moves the affected unit(s) to a certain coordinates.
    • Recasting the ability teleports Io to the new The ability's point-targeted properties. point-targeted location per cast.
      • However, it relocates Io back to the first point upon the relocate duration expiring.
    • The ability has a countdown timer or has a value counter component.
      • Does not refresh the relocate duration in any way.

Recent Matches

[edit]
Main Article: Io/Matches
DateTierTournamentPicksScorevs. PicksPatch
June 2, 2026 - 16:00 ASTQualifierEWC 2026 MESWA CQEWC 2026 MESWA CQEWC 2026 MESWA CQ
Timbersaw
Io
Lich
Drow Ranger
Slardar
1 : 0
Pudge
Shadow Fiend
Disruptor
Dawnbreaker
Ember Spirit
7.41
Details
May 31, 2026 - 21:15 MSKTier 4LOST S2 Div 2 - Group Stage - Week 1LOST S2 Div 2 - Group Stage - Week 1
Io
Slardar
Grimstroke
Zeus
Vengeful Spirit
0 : 1
Hoodwink
Doom
Shadow Fiend
Lich
Tidehunter
+ Details
May 31, 2026 - 21:15 MSKTier 4LOST S2 Div 2 - Group Stage - Week 1LOST S2 Div 2 - Group Stage - Week 1
Snapfire
Slardar
Io
Phoenix
Shadow Fiend
1 : 0
Grimstroke
Tiny
Jakiro
Axe
Juggernaut
+ Details
May 31, 2026 - 13:20 EDTQualifierEWC 2026 NA OQ2EWC 2026 NA OQ2EWC 2026 NA OQ2
Lion
Pangolier
Io
Largo
Dawnbreaker
0 : 1
Hoodwink
Treant Protector
Drow Ranger
Storm Spirit
Night Stalker
7.41c
+ Details
May 30, 2026 - 13:50 MSKTier 4STORM CUP Season 2 - Group ASTORM CUP Season 2 - Group ASTORM CUP Season 2 - Group A
Spirit Breaker
Undying
Death Prophet
Io
Naga Siren
0 : 1
Hoodwink
Slardar
Lich
Terrorblade
Necrophos
7.41c
+ Details

The International

[edit]
  • Io has won the following final matches in The International of the following years:

Recent Changes

[edit]
Main Articles: Changelogs, Old Abilities and Hero Lore
Description
7.41c
(2026-05-06)
  • Reduced Tether heal/restore transfer from 60%/80%/100%/120% to 55%/75%/95%/115%.
  • The Spirits distance between each Spirit unit is now a fixed value per cast.
7.41a
(2026-03-28)
  • Equilibrium
    • Reduced outgoing damage amplification from 5% + (0.5% * HeroLvl) to 4% + (0.4% * HeroLvl) .
    • Reduced health restore amplification from 5% + (0.5% * HeroLvl) to 4% + (0.4% * HeroLvl) .
    • Reduced heal amplification from 5% + (0.5% * HeroLvl) to 4% + (0.4% * HeroLvl) .
7.41
(2026-03-24)
  • REMOVED Wellspring
  • ADDED the Equilibrium Innate. innate ability for Io .
    • Grants a max 5% + (0.5% * HeroLvl) outgoing damage amplification the closer Io is to full health.
    • Grants a max 5% + (0.5% * HeroLvl) health restore amplification the close Io is to zero health.
    • Grants a max 5% + (0.5% * HeroLvl) heal amplification the close Io is to zero health.
    • All ability values scales linearly with Io's current to max health ratio.
  • Overcharge
    • REMOVED the following ability components:
      • Kritzkrieg
      • Medigun
    • Now grants 35/60/85/110 attack speed bonus.
    • Now grants 8%/10%/12%/14% outgoing spell amplification bonus.
  • TalentsTalents Talents:  
    LVL 10  +7 Strength strength increased to +8.  
    LVL 25  -1.5s Relocate cast delay reduction increased to -2s.

Dota Plus Progress

[edit]
Main Article: Hero Challenges

Relics track a hero's actions and statistics, and display in-game notifications when a milestone is reached. They are only available to Dota Plus subscribers.

Io's Relics Voice Lines

Tether Slows

Spirits Damage

Overcharge Allies Duration

Damage During Relocate

Damage During Tether

Total Healing

Urn of Shadows Charges Used

Allies Glimmer Cape Duration

Dominating Kill Streaks

Dusts Leading To Kills

Enemy Ward Kills

Wards Placed

Kill Assists

Kills
Bronze

Silver

Gold

Platinum

Master

Grandmaster

Equipment

[edit]
"Template:Navbox/old" is deprecated! Please use Template:NavBox instead.

Trivia

[edit]
  • Io is the name of a priestess of Hera in Greek Mythology. She was seduced by Zeus and subsequently incurred Hera's wrath.
    • Io is also the name of one of four Galilean moons of Jupiter, which was named after the same character in Greek Mythology.
  • Enigma, Chaos Knight, Keeper of the Light, and Io together represent the four fundamental forces of the universe with Io representing the electromagnetic force, as alluded to in its lore as the attractive and repulsive force, the charge that binds existence together, its powers over magnetism, as well as its abilities which requires Io to pull itself towards allies.
  • In Deadlock, Ivy's 'Watcher's Covenant' ability may be inspired by Io's Tether, both creating a link between caster and target and sharing all healing they receive with each other.
  • Warcraft 3 similarities:
    • Io uses the model of the Wisp, the Night Elf worker unit.
    • In DotA, Io's title is Guardian Wisp. It got shortened to just Wisp in Dota 2.
    • Io has a 1/14 chance to spawn in with the name "Santelmo", referencing St. Elmo's Fire, a rare weather phenomenon.
      • In Philippino folk lore, this is known as Apoy ni San Elmo, commonly shortened to Santelmo, refering to a flying spirit.
    • Io has a 1/14 chance to spawn in with the name "Weird Ball". This is not a reference to anything, it's just a fun name.
[edit]
Retrieved from "https://liquipedia.net/dota2/index.php?title=Io&oldid=2378979"