Board Thread:Theories and Speculation/@comment-1458758-20150222180047/@comment-1458758-20150223165512

Seelentau wrote: Hidan wasn't featured in the databook, that's why he has no natures listed.

Furthermore, Hidan's unique ability to stay alive even after decapacitation and his unique technique to mirror his wounds on a marked opponent are two different things. He just combines his ability with his Hiden Ninjutsu. Theoretically, everyone could do that, they would just die as a result.

Indeed, I thought there was something about his continued immortality being determined by continuing to murder, but that might've been misinformation that was corrected some time ago.

Even so, I'm pretty sure his immortality is based on Yang Release and his Death Controlling Possession Blood is YinYang release because of it's ability to take what is essentially an imaginary concept (The voodoo-esque duplication of injury) and make it reality.