Dubhano's Eternal Succession

This powerful and forbidden ritual allows a willing individual to offer their body as a vessel for a deceased soul. The ritual comprises two distinct phases:

Phase 1: The soul intended to take over must have completed a year-long preparatory ritual before their death. This ritual involves binding their essence to a personal belonging and enchanting a rare gemstone worth at least 5,000 gp. This phase requires a spellcaster capable of casting 9th-level necromancy spells.

Dubhano's Note: "Alright, my dear necromantic enthusiast! This part is crucial! You need to find something deeply personal to the soul you want to bring back. A cherished locket, a favorite quill, or even a beloved rubber ducky (don’t ask)! Enchant the gem with care and remember, no skimping on the 5,000 gp. Trust me, I tried cheaper ones, and let’s just say it didn’t go well... Poof! Bye-bye, gem!"

Phase 2: The willing individual, referred to as the sacrificial host, performs the Ritual of Eternal Succession, which requires three days to complete. During this phase, the sacrificial host uses a quart of their own blood to create a magical circle, inscribing within it the three requests they wish the new tenant to fulfill. Upon completion of the ritual, the sacrificial host's soul is destroyed, and phase 1 caster's soul takes possession of the body.

Dubhano's Note: "Now, my dear friend, this is the part where I need to be very serious. Using a quart of your own blood to draw the circle and writing down your three requests is no small task. But what you need to understand is that upon completing this ritual, your soul will be destroyed. This means you will cease to exist. No afterlife, no resurrection. It’s the end.

It's a grave decision and I worry deeply for anyone who feels the need to go through with it. Please, think long and hard about why you’re considering this. If you’re doing it out of despair, talk to someone first. Seek help, find solace. This path is final and irreversible.

If, after all considerations, you decide to proceed, please leave a journal or a diary explaining why. It’s important for the new host, i.e. me, to understand your reasons. Please, be certain about your decision. Your life, your very existence, is on the line."

The new inhabitant is compelled to perform the three tasks inscribed by the sacrificial host. Once these requests are fulfilled, the new tenant is free to act as they desire in their newly acquired body. This ritual is irreversible, and the destruction of the sacrificial host's soul means they cannot be resurrected by any means other than a Wish spell or the Fate card from the Deck of Many Things. The new soul gains full control of the body, along with the memories and abilities of the sacrificial host. Notably, the sacrificial host does not need to have spellcasting abilities for this phase, provided the ritual is executed flawlessly.

Dubhano's Note: "There's also a chance, though untested, that a time reversal spell might work. I haven’t finished the calculations, but it’s something to consider."