Whenever you roll a 1 or 2, put that many +1/+1 counters on Atomwheel Acrobats.

: Roll a six-sided die.

Flying

, Pay 1 life: Grimclaw Bats gets +1/+1 until end of turn.

Flying

Whenever you create or sacrifice a token, each opponent loses 1 life.

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 creature deals combat damage to a player, sacrifice it and return the exiled card to the battlefield tapped."