Algorath, the Merciless

+2: Target creature gets a +1+1 counter. They have double strike until end of turn
-2: Gain control of target creature with a +1+1 counter on it
-8: You get a token with "At the beggining of your upkeep, double +1+1 counters on creatures you control, and add a -1-1 on all creatures you don't