Tobias' Substitution

This spell opens a temporary planar rift between two creatures.

The caster can use this spell to instantaneously swap position with any willing creature in range. Everything a creature is wearing or carrying is taken with them when they swap. 

Additionally, the caster can attempt to swap positions with an unwilling creature, in which case the target must make a charisma saving throw against your spell save DC. On a failure, you swap positions with the creature, but on a success, nothing happens.

At Higher levels.

• When cast with a 4th level spell slot, the caster can attempt to swap the positions of two other creatures. If both creatures are willing, they swap places instantly. If one is unwilling, they may make a charisma saving throw, and if both are unwilling, both may make a charisma saving throw, with the spell failing if either one succeeds.

In all instances, any affected creatures must be within 60ft of the caster or each other, and must be standing upon a solid surface for the spell to function. If they are out of range or not standing upon a solid surface the spell cannot be cast.