Modern Horizons

Prohibit

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

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.

Duel Decks: Jace vs. Vraska

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

Invasion

Kicker o2 (You may pay an additional o2 as you play this spell.)
Counter target spell if its converted mana cost is 2 or less. If you paid the kicker cost, counter that spell if its converted mana cost is 4 or less instead.