Tekhartha Zenyatta

{1}{w}{w}: Place a harmony counter on target
creature other than Zenyatta. Creatures with a
harmony counter get +0/+2.
{1}{r}{r}: Place a discord counter on target
creature. Creatures with a discord counter receive
double damage.
Placing a Zenyatta counter removes previous
copies of the same type of counter. When
Zenyatta dies, remove all harmony/discord
counters from the game.