Stormbreath Dragon [Tarkir: Dragonstorm Commander]

Set: Tarkir: Dragonstorm Commander Type: Creature — Dragon Rarity: Mythic Cost: {3}{R}{R} Flying, haste, protection from white{5}{R}{R}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)When this creature becomes monstrous, it deals damage to each opponent equal to the number of cards in that player's hand.