Planar Devastation

When using this spell, your weapon emanates arcane energy. Your next attack with a melee weapon deals an additional 5d6 force damage. Additionally, if this attack reduces the target’s health below 50 health points, that target is banished. If it is from a different plane of existence than the one it is on, it disappears, returning to the plane of origin. If it is from the same plane, it is sent to a harmless demiplane. In this plane, the target will be Incapacitated and will remain there until the spell ends. When finished, the target reappears in the space it was originally in; if that space is occupied, it reappears in the nearest unoccupied space.