Moon, Affectionate Polydactyl

Partner with Holly, Mischievous Companion
(When this creature enters the battlefield,
target player may put Holly into their hand
from their library, then shuffle.)
Whenever Moon, Affectionate Polydactyl is dealt
damage, you gain that much life.
Whenever you gain 3 or more life, put a +1/+1
counter on target creature you control.
"Moon, do you want a treat?"