Curse of Chaos

You touch a creature, and that creature must succeed on a Charisma saving throw or become cursed for the duration of the spell.

• While cursed, after casting a spell, the target creature must succeed on a charisma saving throw or experience a wild magic surge effect determined by rolling on the wild magic table.

A remove curse spell ends this effect. At the DM's option, you may choose an alternative curse effect, but it should be no more powerful than those described above. The DM has final say on such a curse's effect.

At Higher Levels. If you use a spell slot of 5th level or higher, the duration is 8 hours. If you use a spell slot of 7th level or higher, the duration is 24 hours. If you use a 9th level spell slot, the spell lasts until it is dispelled. Using a spell slot of 5th level or higher grants a duration that doesn't require concentration.