Is It Useless to Cultivate Immortality? I Rely on Cultivating Immortality to Conquer Everything

[Superpower sequence + High energy reversal + Slow heat + No routine + God killing] The great era of resurgence of superpowers is coming, humans around the world are awakening to superpowers, [Magic], [Yin Yang Dao], [Voodoo], [Prophecy], [Rune]... Various cultivation systems are rising. The prosperous age that people expected did not come, and what came was the destruction of all mankind. "Everyone is dead" But Liu Yixian was reborn. Before he became a superpower, he did not choose a training system that really suited him in his previous life. Now he has the opportunity to choose again. He wants to choose the strongest training system. And he wants to monopolize this cultivation system so that he is the only strong person in this cultivation system. He wants to [cultivate immortality].