Donkey Kong, Banana Lord

{t}: Each player creates a colorless artifact token named Banana with "{t}, Sacrifice this token: Add
{r} or {g}. You gain 2 life."
Whenever an artifact an opponent controls is put
into a graveyard from the battlefield,
put a +1/+1 counter on each creature you control that's an Ape or a Monkey.

Whenever Donkey Kong attacks, defending player sacrifices an artifact of their choice.