Sliver creatures you control have "When this creature enters, you may exile target creature an opponent controls until this creature leaves the battlefield."
Equipped creature gets +4/+4.: Until end of turn, Haunted Plate Mail becomes a 4/4 Spirit artifact creature that's no longer an Equipment. Activate only if you control no creatures.Equip (: Attach to target creature you control. Equip only as a sorcery.)
Whenever an Aura becomes attached to Brood Keeper, create a 2/2 red Dragon creature token with flying. It has ": This creature gets +1/+0 until end of turn."
FlyingWhen Siege Dragon enters, destroy all Walls your opponents control.Whenever Siege Dragon attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.
Flash (You may cast this spell any time you could cast an instant.)FlyingWhen Quickling enters, sacrifice it unless you return another creature you control to its owner's hand.
Other white creatures you control get +1/+1., : Another target white creature you control gains vigilance until end of turn. (Attacking doesn't cause it to tap.)
At the beginning of combat on your turn, if you control each creature on the battlefield with the greatest power, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and this turn.)
Hexproof (This creature can't be the target of spells or abilities your opponents control.): Until end of turn, Xathrid Slyblade loses hexproof and gains first strike and deathtouch. (It deals combat damage before creatures without first strike. Any amount of damage it deals to a creature is enough to destroy it.)