Vampire Bats is a common Creature — Bat card from Duel Decks: Garruk vs. Liliana (DDD), collector number 35. Current market price: $0.23, TCGplayer market prices via Scryfall.
Flying (This creature can't be blocked except by creatures with flying or reach.) {B}: This creature gets +1/+0 until end of turn. Activate no more than twice each turn.