Sev, Curious Immortal

+1: Put a l/1 black red Human creature token with bloodthirst 2 onto the battlefield.
0: Until end of turn, Sev, Curious Immortal becomes a 2/2 black Human creature with deathtouch and annihilator 1 that's still a planeswalker.
-6: You get an emblem with "Creatures you control enter the battlefield with bloodthirst 3 and have annihilator 2"