Unravel

Counter target spell. You get an amount of (energy counters) equal to its mana value.

Counter target spell. If that spell's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Counter target spell if its mana value is less than or equal to the greatest mana value among permanents you control.

Counter target spell. If was spent to cast this spell, that spell's controller mills X cards, where X is the spell's mana value.

Kicker (You may pay an additional 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.

This spell costs less to cast if you control a Wizard.

Counter target spell.