Sith Jungle

Sith Jungle enters the battlefield tapped.
{t}: Add {r} or {g} to your mana pool.
{1}{r}{g}: Until end of turn, Sith Jungle
becomes a 3/3 red and green sithspawn
creature with, "Whenever this creature
attacks, put a +1/+1 counter on it." It's
still a land.