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.)
When you cast this spell, reveal the top X cards of your library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield. Then shuffle the rest into your library.Genesis Hydra enters with X +1/+1 counters on it.
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.)
Deathtouch: Return up to three target creature cards from your graveyard to your hand., Exile Soul of Innistrad from your graveyard: Return up to three target creature cards from your graveyard to your hand.