Phantom Breach
1st-level illusion
Casting Time: 1 bonus action
Range: 60 feet
Components: V, S
Duration: Instantaneous
You hurl a flickering spectral dagger or loose a bolt of destabilizing arcane force at a creature you can see within range. The target must succeed on an Intelligence saving throw or take 2d6 psychic damage. On a failed save, roll 1d4. The target takes a penalty equal to the number rolled to its AC until the next time it is hit by an attack, after which the penalty ends.
On a successful save, the target takes half as much damage and suffers no penalty to AC.
At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.