Invert Polarity (Extended Art) - 459 - (Modern Horizons 3)

Choose target spell, then flip a coin. If you win the flip, gain control of that spell and you may choose new targets for it. If you lose the flip, counter that spell. Flavor: "Skreeg! I thought I told you to stop messing with . . . Oh, that worked. Good job, Skreeg."
—Ral Zarek