Moltra, Lava Maiden

+1: Until your next turn, target creature becomes an artifact called Lavastone with "Sacrifice this artifact: It deals 3 damage to target player."
-2: Draw a card. If it's a land Moltra deals 3 damage to target creature.
-8: Destroy all creatures. Then put that many 1/1 colorless Golem creature tokens onto the battlefield.