Banish to the Plains of Chaos

You tear open a hole in reality to plunge a creature into the origin of Chaos. The target must be medium size or smaller and must fail a charisma saving throw. While there, the target is incapacitated. The target remains there until the spell ends. (1 hour). At which point the target reappears in the space it left or in the nearest unoccupied space if that space is occupied. If you are currently in the Plains of chaos, the target will be banished to your throne world or a demi-plane. If the spell ends before 1 minute has passed, The target reappears in the space it left, if its occupied target doesn't return until the hour is up. At 6th level the target can be up to a large creature. At 8th level, the banishment is permanent. 

As a Chaomancy Spell, in order to cast you must succeed a DC 'Will' save (WIS + CON mod) a fail will not lose a spell slot. On a fail you are tainted by Chaos; you have disadvantage on saves against condition spells used by beings of Chaos or who use Chaos magic. A mark can be magically healed or goes away after a long rest. 3 Marks and the effects are permanent or until magically restored. If a Will save is passed the spell can be used 1 more time (as an action) until the Will save must be re-rolled.