Exedra Legend of Darkness

+3: Each player discards a card, and for each creature discarded with way create a 3/3 Hydra token with menace.
-3: Creatures you control gain deathtouch until the end of the turn.
-12: Create a 10/10 Legendary Hydra creature token named Exedra with: While this creature is on the battlefield, creatures you control have deathtouch