Board Thread:Warhammer 40k General Discussion/@comment-14745711-20130906234048/@comment-6078851-20140908013749

i have considered the idea that the throne itself may be hampering his rejuvenation, but even if he was at the throne 5 minutes after the fight with horus his body would have still started to visibly heal as psychic ability has nothing to do with it - do you think vulkan was exerting any psychic might without his head? :P. no, he was dead but the body of a perpetual heals itself regardless of the body's condition - that's what makes perpetuals perpetual :)

i agree that the perpetual ability is insanely powerful and it seems it must have come from emps, but then again maybe it didn't: remember that the primarchs were spirited away and tampered with by the chaos gods and it may be that vulkan's ability came from them.

emps might be a perpetual, but if so he's clueless about it. but personally i think there's too much that argues against it.