Counterspell - Variant

You attempt to interrupt a creature in the process of casting a spell. When Counterspell is cast, both casters must make checks using their spellcasting ability modifier + proficiency bonus + the level of the spell slot being used, plus an additional bonus if Counterspell is upcast. If the total for the character casting Counterspell meets or exceeds the opposing roll, the creature's spell fails and has no effect.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, you get a +1 bonus bonus to your Counterspelling check for each slot level above 3rd. This is in addition to the standard bonus equal to the spell slot being used.