Behemoth, the Continents

You must have at least 6 devotion to green to play this card.
{r/g}{r/g}{r/g}: For each red mana you used, Behemoth, the Continents gains Annihilator X until the end of your turn, where X is the amount of red mana used. For each green mana used, Behemoth, the Continents gains a +1/1 counter. This ability can be used only once a turn.
{t}: Draw cards equal to each 3 devotion to green you have.