Protean Hydra enters with X +1/+1 counters on it.If damage would be dealt to Protean Hydra, prevent that damage and remove that many +1/+1 counters from it.Whenever a +1/+1 counter is removed from Protean Hydra, put two +1/+1 counters on it at the beginning of the next end step.
FlyingWhenever Sphinx Ambassador deals combat damage to a player, search that player's library for a card, then that player chooses a card name. If you searched for a creature card that doesn't have that name, you may put it onto the battlefield under your control. Then that player shuffles.
Play with the top card of your library revealed.As long as the top card of your library is black, Vampire Nocturnus and other Vampire creatures you control get +2/+1 and have flying.
Flying, trampleAt the beginning of your upkeep, sacrifice a creature other than Xathrid Demon, then each opponent loses life equal to the sacrificed creature's power. If you can't sacrifice a creature, tap Xathrid Demon and you lose 7 life.
, Sacrifice Mirror of Fate: Choose up to seven face-up exiled cards you own. Exile all the cards from your library, then put the chosen cards on top of your library.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)Haste (This creature can attack and as soon as it comes under your control.)At the beginning of the end step, sacrifice this creature.
+1: Target player discards a card.−2: Search your library for a card, then shuffle and put that card on top.−8: Put all creature cards from all graveyards onto the battlefield under your control.
