All Slivers have ", : Regenerate target Sliver." (The next time that Sliver would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)
FlyingWhenever you cast an instant or sorcery spell that targets a creature you control, exile that card instead of putting it into your graveyard as it resolves. If you do, return it to your hand at the beginning of the next end step.
Conflagrate deals X damage divided as you choose among any number of targets.Flashback—, Discard X cards. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Flash (You may cast this spell any time you could cast an instant.)When Venser, Shaper Savant enters, return target spell or permanent to its owner's hand.
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)When Shriekmaw enters, destroy target nonartifact, nonblack creature.Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)
Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.): Add ., : Draw a card. Activate only if you have the city's blessing.
All Sliver creatures have "This creature gets +1/+1 as long as you control a Swamp."All Slivers have ": Regenerate this permanent." (The next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)
