Kakuzu

{w}{u}{b}{r}{g}, sacrifice a creature, {t}: Put a life
counter on Kakuzu.
{3}, remove a life counter from Kakuzu: Create
a 5/5 colorless Mask creature token
Immortality 5 (This creature enters the battlefield
with five life counters on it. Whenever this creature
would die instead remove a life counter from this
creature. This creature cant have more than
five life counters on it.)