Transfer minds

You mentally contact a demigod, the spirit of a long- dead sage, or some other mysterious entity you worship. Contacting this intelligence can strain or even break your mind. When you cast this spell, make a DC 15 Intelligence saving throw. On a failure, you take 6d6 psychic damage and are insane until you finish a long rest. While insane, you can't take actions, can't understand what other creatures say, can't read, and speak only in gibberish. A greater restoration spell cast on you ends this effect.
On a successful save you transfer up to 4 willing creatures minds to the place/and or time (within the last year) of preparing the magic item. The creatures feels as if they are waking up after a long rest at the time and/or place with their luggage intact(familliars count as luggage not creature). Everything feels as normal life. When the spell ends it's as if you fall asleep and wake up where you began. If the spellcaster is attacked the spell ends prematurely. On a creatures death saving throw, while the spell lasts, you take psychic damage. Upon 3 failed saving throws the creatures mind is shattered and cannot be restored by any means.

At higher level you can transfer people for longer time