Root Behemoth

{t}, Pay 1 life, Sacrifice Root Behemoth: Search
your library for a nonlegendary land card, put it
onto the battlefield, then shuffle your library.
{t}: Add {c}.
{3}: Until end of turn, Root Behemoth becomes
a 3/2 black and green Elemental creature and
can't be blocked this turn. It's still a land.