Io

Version Control

This article is mostly accurate for the latest version of the game (7.38), in which this hero/item was changed.
It has no changes in the current game version — 7.38b.

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• Unreleased Content

Io

#83

17 + 3

14 + 1.6

23 + 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

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494 +1.95

351 +1.15

3.33 Armor (592.7 EHP)

27.3% Magic Resist (679.5 EHP)

45 ‒ 51 ▶️ Damage (48.3 Avg)

1200 Projectile Speed Melee units have their projectile speed set to 900, if they should ever need it.

500 Attack Range (800)

100 (114) Attack Speed (1.7 BAT) Attacks per Second is defined as ΣAS / BAT / 100

0.3 + 0.4 Animation

320 / 350 ▶️ Move Speed

0.7 Turn Rate This unit takes 0.15s to turn 180°.

27 Collision Size

24 Bound Radius

1800 / 800 Vision Range

Ethereal Gib Type

npc_dota_hero_wisp

2012-06-28 Released

2010-07-24 (v6.68)

Competitive Span 2012-07-05 — 2019-01-29 2019-05-24 — Present

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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.
Roles:	Support Escape Nuker
Adjectives	Blue, Flying Legs ( 0 )

Facets

Kritzkrieg

Overcharge grants bonus attack speed and bonus spell damage amplification.

Medigun

Overcharge grants bonus armor and bonus magic resistance.

Upgrades

Aghanim's

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.

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.

Talents

Instant Attack Tethered Ally's Target	25	100% Overcharge Set Move Speed
-30s Relocate Cooldown	20	+0.2% Overcharge Max Health as Health Regen Bonus
+60 Spirits Hero Damage	15	+5% Tether Move Speed
+12 Tethered Unit Attack Damage	10	+1.5s Overcharge Duration
▃ ▃ ▃ ▃ ▃ ▃ ▃ +2 All / / Attributes

Bio

Beep Boop

▶️  Io, the Wisp

Lore:

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)

Innate

Sight Seer

Sight Seer

Ability

Passive

Affects

Self

Reduces the capture time and grants vision bonus to all captured Watchers.

Current Channel Time: 0.5

Vision Bonus: 300

• Details
• Status Effects
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• Lantern of Sight grants Io's team a total 1100 daytime and nighttime vision when captured.

modifier_wisp_tentacles

Hidden Modifier

Hero Model

Hero Model

Ability

Passive / Channeling

Affects

Self

Io's hero model has the following hidden innate abilities.

It may only perform or utilize the ability's functions upon a successful channeling.

The Wisp is considered a ground unit, despite its hero model showing otherwise.

The Fundamental's facing direction is a mystery. However, if you watch closely, the facing direction is marked by an arc-like effect.

Effect Range: 256

Details

Hidden Innate Abilities

Tap on the innate abilities for more details.

• 
  • The wisp_tentacles buff causes Io to have several tentacle-like effects that palpate any visible units within range of it.
  • The effect randomly switches between units every few seconds.
    • Has no gameplay impact.

Abilities

Tether

Q

T

Tether

▶️ ▶️ ▶️

Ability

Unit / Passive

Affects

Self / Units

Damage

Instant Attack / Physical

The Fundamental tethers itself to an allied unit, granting bonus movement speed to both of them. Whenever Io restores health or mana, the tethered unit gains a portion of the regeneration.

Tether breaks when either the allied unit moves too far away, or Io cancels it.

Cast Animation: 0 + 0

Cast Range:  1600

Break Distance: 1000

Pull Distance: 700

Break Distance During Pull: 2150

Ally Heal Factor: 0.6/0.8/1/1.2

Ally Mana Restore Factor: 0.6/0.8/1/1.2

Ally Move Speed Bonus: 6%/8%/10%/12% ( 11%/13%/15%/17%)

Attack Damage Bonus: ( 12)

Instant Attack Damage Factor: ( 0.75)

The link between Io and the affected allied unit applies a brief slow and damages enemy units coming in contact.

Move Speed Slow: 10%/20%/30%/40%

Attack Speed Slow: 10/20/30/40

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: ( 120)

Heal per Second: ( 60)

12

40

The benevolent touch of Io brings strength from between the planes.

• Details
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• Io pulls itself 1000-speed until and latches to the affected ally within 300-distance in the following conditions:
  • EXPR
    CastRange ≥ | IoPosition - AllyPosition | ≥ 700
  • Pulls Io over impassable terrain and through trees.
    • Trees within 350-radius are destroyed when the pull ends.

• The pull ends in the following conditions:
  • EXPR
    After Cast, | IoPosition - AllyPosition | ≥ 2150 Tether breaks and the pull ends.
  • Upon the Break Tether sub-ability cast.
  • When Io is affected by the following sources:
    • Fear sources.
    • Stun sources.
    • Hex sources.
    • Hidden sources.
    • Root sources.
  • Forced movement sources ends the pull after the movement applied ends.

• Tether has an indefinite duration, and it breaks in the following conditions:
  • Upon Io or the ally's death.
  • When affected by Swallow.
  • If affected Tusk casts Snowball.
  • Upon the Break Tether sub-ability cast.

• The movement speed bonus component has the following properties:
  • Grants the affected ally the percentage-based bonus movement speed.
  • Sets Io's movement speed as follows:
    • EXPR
      AllyΣMS = IoBaseMS
      • Haste movement sources still has precedence over movement speed setting sources.
      • Other percentage-based movement speed sources now utilizes the new base movement speed value.
      • Flat 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.
    • Io is still restricted by the max movement speed limit.

• The following ability effects are granted and applied to the Tethered allied unit:
  • All Overcharge ability effects.
  • Relocate
  • The following health restoration mechanics are transferred as heal per instance proc:
    • Heal sources.
    • Health regeneration sources.
    • Lifesteal sources.
    • Spell lifesteal sources.
  • The following mechanics are transferred as mana restore per instance proc:
    • Mana restore sources.
    • Mana regeneration sources.
  • The restoration effects on the affected ally always restores for the full value regardless of the how much restoration is applied on Io, and is applied after all restoration manipulation sources on Io.

• The affected ally benefits from all aforementioned ability effects even when becoming hidden or invulnerable.

• Applies both the movement speed slow and attack speed slow to all enemy units within ≈55-distance of the link per server tick.

• Cannot be cast the following units:
  • Couriers

• SHARD NOTES
  Passively grants spell lifesteal to both Io, and the allied unit when tethered.
  • Stacks additively with other lifesteal sources. However, it does not share other spell lifesteal sources.
  • This ability component considers creep-heroes as creeps, and does not spell lifesteal off illusions.

• TALENT NOTES
  Most of Tether's talents that affects both Io and the allied unit immediately update the current buff.
  • The attack damage bonus talent grants flat bonus attack damage.
  • The health increasing talent increases the max health capacity and keeps the current health percentage.
    • This ability component considers illusions and creep-heroes as creeps.

• However, the enemy slow increasing talent does not update the current buff instance.

• The attack tethered allied target talent instant attacks on every enemy the tethered ally attacks upon the ally's attack point, and has the following properties:
  • Can proc any attack modifiers and on-hit effects.
  • Do not have True Strike.
  • Affected by disarm sources.

• Does not instant attack in the following conditions:
  • When Io is affected by stun sources.
  • When tethering Io's own illusion.

• MORPH
  Immediately breaks upon losing ability and upon Morph cast.

• SPELL STEAL
  Immediately breaks upon losing ability.

modifier_wisp_tether

Tethered: Movement speed matched to and giving regen to tethered target.

modifier_wisp_tether_haste

Tethered: Movement speed increased by x% and getting health and mana regen from Io.

modifier_wisp_tether_slow

Tether: Movement speed decreased by x% and attack speed decreased by x.

• When the distance between Io and the ally is ≥ 700, the link's visual appearance changes.
  • The link changes color at 700-distance and jiggles at 800-distance.

• The health regeneration and mana regeneration values are checked and transferred to the affected ally in 0.1-second intervals.
  • The heal and mana restore values are checked and transferred to the affected ally per server tick.

• If either Io or the ally is 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.

• TALENT NOTES
  For melee units, if the enemy target is 350 range farther than the attacker's range, the attack will miss regardless.

Break Tether

Q

T

Break Tether

Ability

No

Affects

Self

The Fundamental no longer tethers itself to the affected allied hero.

Cast Animation: 0 + 0

The sub-ability has a downtime upon Tether cast.

Downtime: 0.25

1

Sub-ability of Tether.

Details

• The sub-ability has the following properties:
  • Interrupts Io's channeling abilities upon cast.
  • Replaces Tether until the sub-ability is used or the tether is broken.

Spirits

W

W

Spirits

▶️ ▶️ ▶️

Ability

No / Passive

Affects

Enemy Units

Damage

Spell / Magical

Summon a number of particles that dance in a circle 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.

Cast Animation: 0 + 0

Number of Spirits: 5

Collision Radius: 110

Explosion Radius: 360

Explosion Damage: 30/50/70/90 ( 90/110/130/150)

Duration: 19 ( )

Move Speed Slow: ( 15%)

Slow Duration: ( 0.3)

The particles' damage is less effective on creeps, but they do not explode upon collision.

Collision Radius: 150

Collision Damage: 10/15/20/25

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: ( 1)

26/24/22/20 ( 13/12/11/10)

100/110/120/130

Io twists the particles of the universe with his unimaginable capabilities.

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• Interrupts Io's channeling abilities upon cast.

• Summons 1 spirit in 1-second intervals, immediately upon cast, and expands automatically to its 650 max distance
  • The first spirit is always spawned north of Io, with subsequent spirits spawning behind the first.
  • All spirits rotate clockwise and keep an equal distance from each other, centered on Io upon cast for the entire duration.
  • Moving the spirits In or Out do not break their formation.

• The spirits complete a revolution per 2.7 seconds regardless of its distance from Io.
  • Hence, the first spirit can rotate at most 7 times around Io.
  • The spirits' angular velocity is constant. The further the distance from Io, the faster the spirits' speed.

• Applies the collision damage to creeps within the collision radius.
  • The collision damage considers illusions and creep-heroes as creeps.
  • Does not apply the collision damage to enemy heroes nor the Spirit Bear.

• The spirit explodes, and applies the explosion damage when an enemy hero, or creep-heroes, collides with the spirit.
  • The explosion damage and movement speed slow affects all enemy units within the explosion radius.

• Neither collides nor explodes on the following units:
  • Hidden units.
  • Invulnerable units.

• Does not affect the following units:
  • Couriers
  • Ward-type units.

• Remaning spirits explodes simutaneously at the end of the duration.
  • Recasting the ability instantly causes the current spirits to explode.

• The spirits are invisible to the enemy if Io is invisible.

• SCEPTER NOTES
  Adds a passive component, Spirits now constnatly and passively spawns spirits around Io in the same intervals.
  • The active component now acts akin to recasting the ability upon cast.
  • Both Spirits In and Spirits Out sub-abilities are now permanently available.
  • All spirits now have an indefinite duration, and do not explode unless it collides with enemy heroes.

• ABILITY DRAFT
  Replaces by both Spirits In and Spirits Out sub-abilities upon cast.
  • Right Click toggles between both sub-abilities.
  • These 3 abilities share a single ability slot.

modifier_wisp_spirits

Spirits: Surrounded by friendly spirits.

modifier_wisp_spirits_slow

Spirits Slow: Move speed slowed by x%.

math

• SCEPTER NOTES
  The ability effects are applied as follows:
  1. The magical spell damage.
  2. The movement speed slow.

• Acquiring the ability upgrade while active creates new spirits, the previous active spirits disappear without exploding.
  • When losing the ability upgrade, the current spirits just simply disappears.

• SCEPTER NOTES
  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 takes its place, and collides with the enemy hero again.

Spirits In

D

D

Spirits In

Ability

Toggle

Affects

Self

Calls and attracts in all the particle-like spirits to the Fundamental.

Cast Animation: 0 + 0

Min Distance: 200

Spirits Speed: 250

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.

Sub-ability of Spirits.

• Details
• Misc.
• Show All

• This sub-ability has the following properties:
  • Not displayed on the HUD if Io does not have the Spirits buff.
  • Does not interrupt Io's channeling abilities upon cast.

• Moves the spirits towards Io at 250-speed.
  • The spirits take 1.8 seconds from moving the spirits from maximum to minimum distance.

Spirits Out

F

E

Spirits Out

Ability

Toggle

Affects

Self

Sends and repulses out all the particle-like spirits from the Fundamental.

Cast Animation: 0 + 0

Max Distance: 650

Spirits Speed: 250

Aghanim's Scepter Upgrade
As the spirits now permanently orbits the Fundamental, it sends and repulses these particles as the wisp wishes.

Sub-ability of Spirits.

• Details
• Misc.
• Show All

• This sub-ability has the following properties:
  • Not displayed on the HUD if Io does not have the Spirits buff.
  • Does not interrupt Io's channeling abilities upon cast.

• Moves the spirits towards Io at 250-speed.
  • The spirits take 1.8 seconds from moving the spirits from min to max distance.

Overcharge

E

V

Overcharge

▶️

Ability

No

Affects

Self / Allied Units

Grants max health as bonus health regeneration.

Cast Animation: 0 + 0

Max Health as Health Regen Bonus: 0.5%/0.6%/0.7%/0.8% ( 0.7%/0.8%/0.9%/1%)

Duration: 8 ( 9.5)

Grants the tethered allied unit all Overcharges' ability effects as well.

Talent Upgrade
The Fundamental cannot be slowed and ignores root sources applied to itself and the Tethered ally while active!

Set Move Speed: 100%

Duration: 8 ( 9.5)

25/22/19/16

40/60/80/100

Drawing on the energy of matter from all worlds, Io begins the unravelling of time.

• Details
• Status Effects
• Misc.
• Show All

Kritzkrieg

Overcharge grants bonus attack speed and bonus spell damage amplification.

Attack Speed Bonus: 35/60/85/110
Spell Damage Amp: 8%/10%/12%/14%

Medigun

Overcharge grants bonus armor and bonus magic resistance.

Armor Bonus: 4/7/10/13
Magic Resist Bonus: 12%/18%/24%/30%

---

• Interrupts Io's channeling abilities upon cast.

• Tether transfers all ability effects to the current affected allied unit.
  • Io does not need to be tethered to the allied unit to transfer Overcharge. Tethering afterward transfers it as well.
  • Overcharge appears as a permanent buff on the affected ally.
  • TALENT NOTES
    The max health as bonus health regeneration talent does not update the current Tether instance.

• SHARD NOTES
  Stacks multiplicatively with other slow resistance sources.

• FACET NOTES
  • Kritzkrieg applies a generic outgoing damage amplification on Io.
    • Stacks additively with other incoming damage manipulation sources.
    • Does not affect HP Removal sources.
  • Medigun grants flat bonus armor.
    • Stacks multiplicatively with other magic resistance sources.

modifier_wisp_overcharge

Overcharged: Attack speed increased by x, and x HP Regen.

• Medigun grants the following bonuses while active:
  • Has 34%/38.5%/43%/47.5% magic resistance.
  • Overcharge increases the total magic resistance by 0.88%/0.82%/0.76%/0.7% per 10 intelligence points.

Relocate

R

R

Relocate

▶️ ▶️ ▶️

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.

Cast Animation: 0 + 0.53

Cast Range: Global

Effect Delay: 3.5/3.25/3

Duration: 12

Teleports the tethered allied unit alongside with Io. Upon the duration expires, Io and the tethered allied unit will return to the original ability cast location.

100/90/80 ( 70/60/50)

175

Io is the embodiment of the mystery of the universe.

• Details
• Interactions
• Status Effects
• Misc.
• Show All

• Doubletap casts the ability at the faction's fountain.
  • Disable Help on Io prevents Relocation from teleporting the allied hero.

• Grants a 3.5/3.25/3-second 300-radius flying vision at the point-targeted location.

• Interrupts Io and the affected Tethered allied hero's channeling abilities both on the initial teleport, and relocating back.

• Disjoints incoming projectiles for Io on the initial teleport, but does not disjoint upon relocating back.
  • Does not incoming projectiles for allied hero in any way.

• The teleport is interrupted if Io is affected by any of the following sources:
  • Cyclone sources.
  • Hex sources.
  • Root sources.
  • Stun sources.
  • Sleep sources.
  • For silence sources, the teleport does not happen if Io is affected as the effect delay finishes.

• Disabling the Tethered allied hero does not prevent it from getting teleported or relocated back if Io successfully does so.

• Relocate considers clones, illusions and creep-heroes as heroes.

• Affects the following units:
  • Hidden allied heroes.
  • Invulnerable allied heroes.

• Trees within 350 radius centered around are destroyed upon teleporting, and relocating back.

• WHILE ROOTED
  Root sources does not prevent the ability cast.

modifier_wisp_relocate_thinker

On hidden entity

modifier_teleporting

Teleporting

modifier_wisp_relocate_return

Return: About to return to previous location.

• Recasting the ability teleports Io to the new point-targeted location per cast. However, it relocates Io back to the first point upon duration expiring.
  • Does not refresh the ability duration in any way.

Recent Matches

Main Article: Io/Matches

Date	Tier		Tournament	Picks		Score		vs. Picks
Mar 13, 2025 - 18:45 EET	Tier 1		PGL Wallachia S3			0 : 1
Mar 10, 2025 - 12:30 EET	Tier 1		PGL Wallachia S3			1 : 0
Mar 09, 2025 - 21:30 EET	Tier 1		PGL Wallachia S3			0 : 1
Mar 05, 2025 - 17:20 CET	Tier 3		EPL Season 24			0 : 1
Mar 01, 2025 - 14:55 CET	Tier 1		DreamLeague S25			1 : 0

The International

• Io has won the following final matches in The International of the following years:
  • 2013
  • 2019

Recent Changes

Main Articles: Changelogs, Old Abilities and Hero Lore

Version

Description

7.38
(2025-02-19)

• Increased strength gain from 2.7 to 3.
• U Increased base attack damage from 4‒10 to 21‒27.
• Tether
  • No longer deals 15/25/35/45 contact damage per second.
  • Now has a debuff that indicates the ability's remaining cooldown visible ally-only.
  • Increased enemy movement speed slow from 10%/20%/30%/40% to 15%/30%/45%/60%.
  • Increased enemy attack speed slow from 10/20/30/40 to 15/30/45/60.
• REWORKED Aghanim's Shard upgrade:
  • OLD
    • Tether grants 10% spell lifesteal bonus.
    • Overcharge grants 30% slow resistance bonus.
  • NEW Tether
    • Now deals 120 contact damage per second coming within its slow range.
    • Applies a 0.5 * DamageDealt lifesteal-based self-heal.

• Talents:  

  LVL 10  +15%/+15 Tether enemy movement speed/attack speed slow ➜  +1.5s Overcharge duration.  

  LVL 25  +400 health to Tethered units ➜  Unslowable during Overcharge .

7.36b
(2024-06-05)

• Overcharge Medigun
  • Increased armor bonus from 3/6/9/12 to 4/7/10/13.
  • Increased magic resistance bonus from 10%/15%/20%/25% to 12%/18%/24%/30%.

7.36
(2024-05-22)

• ADDED the Sight Seer innate ability for Io :
  • Has a 1-second capture time reduction.
  • Grants all captured Watchers 300 vision radius bonus.
• Tether
  • Increased contact damage per second from 10/20/30/40 to 15/25/35/45.
  • Reduced enemy movement speed slow from 15%/25%/35%/45% to 10%/20%/30%/40%.
  • Reduced enemy attack speed slow from 15/25/35/45 to 10/20/30/40.
• Increased Spirits collision damage from 10/15/20/25 to 12/18/24/30.
• U Overcharge
  • No longer grants 35/60/85/110 attack speed bonus.
  • No longer grants 8%/10%/12%/14% outgoing spell amplification bonus.
  • ADDED the Kritzkrieg facet.
    • Now grants 35/60/85/110 attack speed bonus and and 8%/10%/12%/14% outgoing spell amplification bonus.
  • ADDED the Medigun facet.
    • Now grants 3/6/9/12 armor bonus and 10%/15%/20%/25% magic resistance bonus.

• Talents:  

  LVL 10  +15 attack damage to Tethered units reduced to +12.  

  LVL 15  +55 Spirits explosion damage increased to +60.  

  LVL 15  +6% Tether movement speed bonus reduced to +5%.  

  LVL 20  -25s Relocate cooldown increased to -30s.  

  LVL 25  +1 instant attack factor for Tethered ally's attack target reduced to +0.75.

Dota Plus Progress

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	▶️ Laughing Beeps ▶️ Thankful Beeps
	Silver	▶️ Denying Beeps ▶️ Friendly Beeps
	Gold	▶️ Triumphant Beeps ▶️ Sorrowful Beeps
	Platinum	▶️ Angry Beeps
	Master	▶️ Meditative Beeps
	Grandmaster	▶️ Ominous Beeps

Trivia

• 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.

• Io's fun names in DotA were Weird Ball and Santelmo. Santelmo may refer to" St. Elmo's Fire"", a weather phenomenon that creates sparks of bright energy similar to that of lightning, mostly occurring from sharply pointed structures. Santelmo may also refer to the Philippine's folklore creature which is a head of fire, or a ball of fire which Io resembles.

• 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.

Gallery

• 

  Splash artwork

• 

  Io model (sprite)

• 

  Alternate color theme, briefly used until the March 28, 2013 Patch

• 

  Ability icon progress [?]

• 

  Hero icon progress [?]

• 

  Bone Harvest sprite - alive

• 

  Bone Harvest sprite - dead