Gemma Shin, Agony Instilled

Trample

Whenever Gemma Shin, Agony Instilled is dealt
damage, it deals that much damage to target
creature. If a creature dealt damage this way would
die, put a +1/+1 counter on this creature.

{1}{r/g}, {t}: Gemma Shin, Agony Instilled deals
damage equal to its power to itself.

Pain is power, and Agony is my ally.