Counterspell

Counterspell is a 3rd-level abjuration available to Paladin, Sorcerer, Warlock, Wizard.

You attempt to interrupt a creature in the process of casting a spell. If the creature is casting a spell of 3rd level or lower, its spell fails and has no effect. If it is casting a spell of 4th level or higher, make an ability check using your spellcasting ability. The DC equals 10 + the spell's level. On a success, the creature's spell fails and has no effect.

Mechanics

level:: 3
range:: 60 feet
ritual:: false
school:: Abjuration
classes:: Paladin, Sorcerer, Warlock, Wizard
duration:: Instantaneous
casting time:: 1 reaction, which you take when you see a creature within 60 feet of you casting a spell
concentration:: false