Doloth's Ball of Screams

Select one target that you can see. You summon a translucent sphere that traps the target inside if they fail a reflex save. When the target is trapped inside the ball emits a loud scream that deals 1d8 sonic damage for the hour that they are trapped inside the sphere. The target cannot escape through non-magical means and if they try to get out from the use of a teleportation spell they must make a Charisma saving throw. If failed, they are still trapped and expended a spell slot. 

" Hmph, and this was one of my weaker spells..." - Doloth, Mammatoth Wizard.

At Higher Levels When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot level above  3rd.