Guardian of the Last Grove

Guardian of the Last Grove can't attack.
{3}{w}{b}{g}, {t}: Exile any number of creature cards
from your graveyard. Untap a land you control
for each creature exiled this way, and all
non-artifact creatures you control gain +1/+1 for
each creature exiled this way.
"I have seen generations grow and die. You will be no different."