Aurelia's Schadenfreude

You drive a dizzying, invisible spear of radiant energy into the mind of one creature you can see within range.

The target must succeed on a Charisma saving throw or take 6D8 radiant damage. Should they succeed, they take half damage and suffer no further effects from the spell. 

Choose one ability when you cast the spell. The target has disadvantage on saving throws made with the chosen ability.