Gathered Incense

Megamorph {r/g} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up at any time for its megamorph cost and put a +1/+1 counter on it.)
Landfall -- Whenever a land enters the battlefield under your control, add {r} or {g} to your mana pool and put a +1/+1 counter on Gathered Incense.
{1}{r}{g}: Gathered Incense becomes a 0/0 Elemental creature with haste until end of turn.