Prohibit - Modern Horizons - 64

Instant

Mana Cost: {1}{U}

Kicker {2} (You may pay an additional {2} as you cast this spell.)
Counter target spell if its mana value is 2 or less. If this spell was kicked, counter that spell if its mana value is 4 or less instead.

Common · Modern Horizons · #64 (MH1)

Illustrated by Adam Rex