Karn, Primordial Golem

+1: Regenerate target creature. Create a 1/1 Colorless Servo Artifact creature.
-4: Remove all -1/-1 counters from all creatures you control. You lose all poison counters.
-8: You get an emblem with: "You can't lose the game and Karn, Primordial Golem can't leave the battlefield as long as you control an artifact."