Groot

Partner with Rocket Raccoon (When this creature
enters the battlefield, target player may put Rocket
into their hand from their library, then shuffle.)
Persist (When this creature is put into a graveyard
from play, if it had no -1/-1 counters on it, return it
to play under its owner's control with a -1/-1 counter
on it.)
{g}, Remove a -1/-1 counter from Groot: Destroy
target artifact or enchantment.
"I am Groot."