Shorack, the destructor

+2: Draw card, deal X damage to any target where X is that cards mana cost. If it is a land create a 3/3 red dragon creature token with flying
-X: tap X target permanents, those permanents don't untap during their controllers untap step
-10: for each opponent: exile up to five permanents, each opponent's life total becomes 5 less, each opponent discards three cards