Ego Lash

You psychically lash out at one creature you can see within range. The target must succeed on an Intelligence saving throw. On a failed save, the target takes 2d10 psychic damage, and until the end of your next turn it forgets any languages that it knows and is incapable of meaningful communication or performing any verbal components for spells. On a successful save, a creature takes half damage and suffers no other effects.

At Higher Levels. When you cast this spell using a spell slot of 2nd–level or higher, the damage increases by 1d10 for each slot level above 1st.