Olgrith, The Corrupter

+2: Put two 1/1 Corrupted ally creature tokens with defender onto the battlefield. On the upkeep of your next turn, destroy them.
-4: Put a 0/-2 counter on target creature. If target creatures toughness then becomes zero, change the counters to +1/+1 counters and gain control.
-10: Sacrifice a creature you control. A target creature gains it's toughness and power as well as menace, trample, and reach until your turn ends.