Preyseizer Dragon is a rare Creature — Dragon card from Planechase 2012 (PC2), collector number 50. Current market price: $0.73, TCGplayer market prices via Scryfall.
Flying Devour 2 (As this creature enters, you may sacrifice any number of creatures. It enters with twice that many +1/+1 counters on it.) Whenever this creature attacks, it deals damage to any target equal to the number of +1/+1 counters on this creature.