Towering Titan [Tarkir: Dragonstorm Commander]

Set: Tarkir: Dragonstorm Commander Type: Creature — Giant Rarity: Mythic Cost: {4}{G}{G} This creature enters with X +1/+1 counters on it, where X is the total toughness of other creatures you control.Sacrifice a creature with defender: All creatures gain trample until end of turn. "Knock, knock."