Choose a creature you can see that is concentrating on a spell. The creature takes 2d8 psychic damage as you put enormous strain on their mind. Until the spell ends, you can use a bonus action on each of your subsequent turns to cause this damage again if the creature continues concentrating on the spell.

If a creature takes damage from this spell and maintains concentration, they have disadvantage on future rolls to maintain concentration for that spell.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.