DC's Legends of Tomorrow - 1ª temporada

E igual para que se reencarnen tiene que estar Kendra muerta tambien

Según una wiki que se basa en el argumento de la serie, no en los comics, pone esto sobre su inmortalidad:

Immortality: Due to being exposed to the radiation of a meteor, Vandal gained Immortality. Every time he kills Khufu and Chay-Ara, he became more powerful. Vandal is at least 4,000 years old and remained physically unchanged in all this time, retaining his physical health, conditioning, and appearance, making him able to live on potentially indefinitely. In order for him to maintain this state, he has to repeatedly kill the reincarnations of Khufu and Chay-ara and absorb their life force. As he draws his immortality by absorbing bits of the energies of the meteor from their lifeforce, the only way to truly kill him is if the reincarnations of Khufu and Chay-ara deal the final blow, otherwise he could still be restored. Objects from the first life can be used to kill him.

http://arrow.wikia.com/wiki/Vandal_Savage

Vamos, yo recuerdo que dijeron eso en Arrow, que para él seguir viviendo tenía que matarlos, además de hacerse más fuerte.