WUBRG

{w}{w}{w}{7}:create soldier token's equal to highest amount of creature's on the field
{u}{u}{u}{7}:take control of someone's turn
{b}{b}{b}{7}:pay any amount of life draw that many cards
{r}{r}{r}{7}:destroy up to 10 lands
{g}{g}{g}{7}:all creatures you control get +10 +10 and trample