Kiri's Soul Transfer
(Necromancy)

Range:  0
Components:  V, S, M
Duration:  Instantaneous
Casting Time:  1 turn
Area of Effect:  The caster and one other person touched
Saving Throw:  Negates

This morally questionable spell causes two beings or the caster and another being to completely switch bodies. All skills, class abilities, hit points, Intelligence, Wisdom and Charisma stay the same as they were in the original body. The physical statistics (Strength, Dexterity, Constitution) are now those of the new body (note that the hit points may have to be adjusted according to the new Constitution). The same occurs to the second person involved in the spell.
Unwilling participants are allowed a saving throw versus spell. If trap the soul is cast at the same time, Kiri's soul transfer is saved against at -4.
The material components of the spell amount to 7000 gp worth of preparations taking 2 days.
This is a great spell to base adventures around - some old evil wizard looking for a new, young body. The PCs must find some way to reverse the process by finding the spell.

