MachinaOnTheMoon
Thanks for answering the request, if it has disadvantages but with someone immortal or the ability to recover their life force it would be invaluable, it can also be used as a last resort, Finally I give you two more, the clones of Jeong Sangwooo from the manwha Auto-Hunting With Clones and the Void Maker tattoo of akatsuka justice from the anime/manga Taboo-Tattoo