Mûdra

You can only pay this card's mana cost
with {u}, {r} or {g}. This card's effect changes based on the mana used to cast it :
{u}{u} : counter target spell.
{r}{r} : deal 5 damage to any target
{g}{g} : target creature gains +4/+4
{u}{r}{g} : draw 3 cards