Duel of Honor

You propose a fair duel between yourself and one hostile creature you can see within range that can see or hear you. The target must make a Charisma saving throw. On a failed save, both you and the target vanish into the shores of the Ethereal Plane for the duration. You and the target are visible on the plane you vanish from, but can't interact with anything on that plane.

Until the spell ends, the target can't willingly move away from you, and you can't willingly move away from the target.

The spell ends early if the target leaves the Ethereal Plane, drops to 0 hit points, or dies.