Hivemind of the under grove

when hivemind of the under grove enters the battle sacrifice {x} amount of creatures giving
hivemind of the under grove a +3/+3 for each sacrificed creature.
reach, trample, vigilance
{b}{b}{2}corruption: take a 1/1 token
{g}empower: add a +1/+1 counter to a token
{u}{w}{g}{x}imbuing: add a X/X counter on any
creature. X being how much extra land you
put into it