Wacher Of The Underworld

Wacher Of The Underworld enters the battlefield with X +1/+1 counters. When Wacher Of The Underworld enters the battlefield, you may return target creature card with CMC of X or less from your graveyard to the battlefield.
Whenever you cast a spell with escape, if Wacher Of The Underworld is in your graveyard, choose one:
• create a 2/2 black zombie. draw a card, then you may discard a card.
• you gain 2 life. add {1}{u}{b}.