Counterspell (Fixed)

As long as you are concentrating on this spell, you can use your reaction to attempt to prevent another creature from casting a spell. You must be able to see the creature, and it must be within 60 feet of you. After using your reaction this way, this spell ends.

When you use your reaction this way, the other creature’s spell has no effect if the spell slot it used to cast it is lower than the level of the slot you used to cast this spell. If the level of the spell slot is equal to or higher than yours, you must make an ability check using your spellcasting ability. The DC is equal to 10 + the level of the spell slot the other creature used. The other creature’s spell has no effect if you succeed on this skill check.