Vraska, Swarm Leader

+2: Create a 1/1 gorgon with deathtouch and "if this creature does damage to a planeswalker destroy that planeswalker"
-X: Create a X/X gorgon with deathtouch, trample and "if this creature does damage to a planeswalker destroy that planeswalker"
-10: Create a 10/10 gorgon with deathtouch, trample flying and "if this creature does damage to a player that player loses the game"