Stones of Ancient Strengths

{4}{t}: Depending upon its color and owner,
until end of turn, target creature gets:
If you control the creture
Black, Red, or Green: +3/+3
Blue or White: +2/+2
If an opponent controls the creature:
Black: -2/-2
Red or Green: -1/-1
Blue or White: Defender
The stones stand, ever ready to obey those of the
right blood. To lend strength or impose weakness.