{T}: Add {C}. {4}, {T}: Investigate. At the beginning of your end step, if you sacrificed three or more Clues this turn, transform Havengul Laboratory.
"Today, we make history. Today, we make contact." —Dr. Martin Brenner
When this land transforms into Havengul Mystery, return target creature card from your graveyard to the battlefield. When the creature put onto the battlefield with Havengul Mystery leaves the battlefield, transform Havengul Mystery. {T}, Pay 1 life: Add {B}.
Sliver creatures you control have "When this creature enters, you may exile target creature an opponent controls until this creature leaves the battlefield."
Slivers are often seen toying with enemies they capture, not out of cruelty, but to fully learn their physical capabilities.
All Sliver creatures have flying. All Slivers have "If this permanent would be put into a graveyard, you may put it on top of its owner's library instead."
Like a great bellows it hisses, and its kin, both living and dead, are lifted to safety.
Whenever a Sliver creature you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {2}.
"The hive shimmered, and its walls seemed a living mirror." —Hastric, Thunian scout
Masters of adaptation, galeriders serve multiple purposes useful to the hive. When they're not patrolling their territories, their majestic wings serve to circulate cool air through the vast hive chambers.
"Slivers are guided only by simple instinct. Advance the hive, and you will be welcomed. Impede the hive, and you will face unrelenting opposition." —Freyalise
All Slivers have "Sacrifice this permanent: Add {B}{B}."
"Fascinating . . . These creatures display the paradox of tenacity and purposed self-destruction I have sought to breed into my thrulls." —Endrek Sahr, master breeder