Dead Vessel

When you cast this spell, touch the body of a deceased humanoid. The soul of a willing creature of your choice, if it is willing, enters the body and animates it. The creature the soul came from need not be dead, but it must be a willing soul either way. If the creature was alive before casting this spell, it’s original body dies when the casting of this spell ends. If the creature was dead, it can have been dead no longer than 7 days, and cannot have died of old age.

This form of resurrection is extremely taxing on the target body. The soul, whose mental ability scores remain intact (Intelligence, Wisdom, and Charisma), must make a DC 20 Charisma saving throw; on a failed save they inhabit the body, but only for a seven days, after which the body dies. The creature retains the physical ability scores of the body it inhabits, but none of its class levels, abilities, proficiencies, etc.; they retain all of their own class levels, proficiencies, etc., but their proficiency bonus is decreased to +1. If they fail the saving throw by more than 10, the body is destroyed and the soul is released.

On a successful save the soul inhabits the body fully and they retain their proficiency bonus. The creature still has the physical statistics of the body they inhabit.

The inhabited body regains 1 hit point when this spell is cast and the spirit succeeds in inhabiting it.

This spell can only be cast on a given soul once per week.