Astral Imprisonment

You focus on a creature and attempt to violently shunt them into an extraplanar prison by forcing them to make a Charisma saving throw. On a failed save, the target takes 5d10 force damage and is banished to a temporary prison in the Astral Sea. On a success the target is not banished and takes half damage. While banished, the creature is incapacitated, and they are ejected from the prison, prone, at the end of their next turn. The caster can choose whether this spell does damage or not.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher the damage increases by 1d10 for each slot level above 3rd.