Thousand Brick Fist

You cover your hands in mana. When you cast the spell, you can make a melee spell attack against a creature within 5 feet. On a hit, the target takes force damage equal to 2d8 + your spellcasting ability modifier. The creature also gets disadvantage on its next roll, be it an attack or saving throw.

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