Cataclysm

1st-level evocation
Casting Time: 1 bonus action
Range: Self
Duration: Concentration, up to 1 minute<

The next time you hit a creature with a weapon attack before this spell ends, the attack deals an extra 1d8 psychic damage and the target must make a Wisdom saving throw as crackling energy surrounds it. On a failed save, the target has disadvantage on the next attack they make before the end of your next turn. At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you can increase the damage by 1d8 for each slot level above 1st.