Sengir Nosferatu

Whenever you sacrifice another creature, exile it. If that creature was a token, put a +1/+1 counter on this creature.

When this creature leaves the battlefield, return each card exiled with it to the battlefield under your control.

Ward—Discard a card.

Whenever another nontoken Vampire you control dies, you may pay and exile it. If you do, create a 1/1 black Bat creature token with flying. It gains "When this token deals combat damage to a player, sacrifice it and return the exiled card to the battlefield tapped."

When this creature enters, exile another target creature.

When this creature leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Flying, lifelink

Whenever Aclazotz attacks, each opponent discards a card. For each opponent who can't, you draw a card.

Whenever an opponent discards a land card, create a 1/1 black Bat creature token with flying.

When Aclazotz dies, return it to the battlefield tapped and transformed under its owner's control.

Flying

Whenever a creature dealt damage by this creature this turn dies, return that card to the battlefield under your control.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

At the beginning of each end step, if a creature dealt damage by this creature this turn died, put that card onto the battlefield under your control. Sacrifice it when you lose control of this creature.