Scourge of Valkas is a mythic Creature — Dragon card from Magic 2014 (M14), collector number 151. Current market price: $7.31 (foil $14.81), TCGplayer market prices via Scryfall.
Flying Whenever this creature or another Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control. {R}: This creature gets +1/+0 until end of turn.