Voracious Dragon [Duel Decks: Knights vs. Dragons]

Set: Duel Decks: Knights vs. Dragons Type: Creature — Dragon Rarity: Rare Cost: {3}{R}{R} Flying Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.) When Voracious Dragon enters the battlefield, it deals damage to any target equal to twice the number of Goblins it devoured.