School enchantment (compulsion) [mind-affecting]; Level medium 3, mesmerist 5, occultist 4, psychic 5, sorcerer/wizard 6, spiritualist 4, summoner 5, witch 6
Casting Time 1 round
Components V, S
Range medium (100 ft. + 10 ft./level)
Target one creature
Duration 1 hour/level (D)
Saving Throw Will negates; Spell Resistance yes
This spell is similar to possession, except you switch minds with the target, so instead of the target's soul sharing its body with yours and being unable to act, the target's mind moves to your body and can control it as if you each had cast possession on the other.
Mind Swap, Major
School enchantment (compulsion) [mind-affecting]; Level psychic 9
Casting Time 1 minute
Components V, S, M (diamonds worth 10,000 gp)
Target one creature of your same race
The spell functions as mind swap, except as noted above. In addition, after 24 hours, instead of using each other's hit points, you each revert to your original hit points, modified by your new Constitution modifiers. This spell can be reversed only with miracle, wish, or another major mind swap.