Chromad, Elemental Paragon

{x}{w}: Up to X target creatures get +1/+2 and gain lifelink until end of turn.
{x}{u}: You draw X cards.
{x}{b}: Return up to X target cards from you graveyard to your hand.
{x}{r}: Deal 3 damage to up to X targets.
{x}{g}: Up to 3 target creatures get +X/+X and gain trample until end of turn.