School of Soul Magic. Casting this spell requires expending a number of Soul Shards equal to the level of the spell. Any character without Soul Shards who attempts to cast this spell immediately drops to 0 Hit Points after casting it and begins making Death Saving Throws. Their Hit Points can only be increased once they have stabilized and can only be stabilized by succeeding on three Death Saving Throws. If they die while in this state, they cannot be revived by any means short of a Wish spell.

A creature you touch must make a Charisma saving throw or have their spirit overwhelmed by yours. Undead, Constructs, and other creatures without souls have Disadvantage on this save. On a successful save, the target takes 6d10 Radiant damage. On a failed save, your body discorporates and enters the target, granting you complete control of the target and all of their abilities. Your real body cannot be damaged or targeted while it occupies the creature.

When they take damage, you must make a Concentration save as if you had taken the damage, ending the spell on a failure. Your Concentration is not broken by the target becoming Incapacitated. This spell ends early if the possessed target is reduced to 0 Hit Points or killed.

When this spell ends, you immediately suffer 1 level of Exhaustion. The soul of a creature who fails the saving throw for this spell is tainted and cannot be consumed for at least 1 month after the spell ends.

This spell is intended for use with the Soulbreaker Wizard Homebrew Subclass.