Sacrifice X Zombies, then reveal cards from the top of your library until you reveal a number of Zombie creature cards equal to the number of Zombies sacrificed this way. Put those cards onto the battlefield and the rest on the bottom of your library in a random order.
DeathtouchWhenever a Curse is put into your graveyard from the battlefield, return it to the battlefield attached to you at the beginning of the next end step.At the beginning of your upkeep, you may attach a Curse attached to you to one of your opponents. If you do, draw two cards.
Mikaeus, the Lunarch enters with X +1/+1 counters on it.: Put a +1/+1 counter on Mikaeus., Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.
If a Zombie you control would deal combat damage to a player, instead that player mills that many cards.Whenever a creature card is put into an opponent's graveyard from their library, exile that card and create a 2/2 black Zombie creature token.
Coven — At the beginning of combat on your turn, put a +1/+1 counter on up to one target creature you control. Then if you control three or more creatures with different powers, draw a card.
When Ravenous Rotbelly enters, you may sacrifice up to three Zombies. When you sacrifice one or more Zombies this way, each opponent sacrifices that many creatures of their choice.