Dual Teleport

You bind yourself magically to one target within 50 ft. with clear line of sight. When or if the target attempts to flee by any form of teleportation (ex. Dimension Door, Word of Recall, Teleport, Plane Shift, etc.) both you and the target will teleport to the target's chosen location. If the target attempts to banish you using "Banish", the target will also be banished to their chosen location. 

The spell ends after both caster and target are teleport to the end location.