Blade of Banishment

Touch a weapon and imbue it with Banishment. Any creature cut by the blade must succeed on a DC 11 CHA saving throw or be banished to another plane of existence for 5 minute.

If the target is native to the plane of existence you're on, you banish the target to a harmless demiplane. While there, the target is incapacitated. The target remains there until the spell ends, at which point the target reappears in the space it left or in the nearest unoccupied space if that space is occupied.

If the target is native to a different plane of existence than the one you're on, the target is banished with a faint popping noise, returning to its home plane.