Kuu, The Sorrow Infused Flame

Vigilance
Retribution (Whenever a creature you control dies,
if it wasn't sacrificed, put a +1/+1 counter on this
creature.)
When Kuu, The Sorrow Infused Flame has
three or more +1/+1 counters on it, it gains
flying and first strike.
"Do you see me, Novis? Im being worthy?"