Counterspell (revised)

You attempt to interrupt a creature in the process of casting a spell. The target spell must have a casting time of 1 action.

Make a spellcasting ability check contested by the target's spellcasting ability check. You both gain a +1 bonus to your check for every level you are casting your spell above your opponent's spell level, or a -1 penalty to your check for every level you are casting your spell below your opponent's spell level.

On a failure, the target caster's spell succeds and take effect.
On a tie or a success, the target caster's spell fails and has no effect.

If the target caster's spell fails, they can immediately cast a cantrip as part of the same action they used to cast their spell.

Can be cast at Higher Levels.