User blog comment:B214/Question and Answers 2/@comment-25222726-20140609114621/@comment-1359322-20140609115125

Why are you asking the same thing twice? -__-

As to the reverse thing. There's a limit to reverse, it can't reverse everything. The Phenex's immortality is on their body, you can't reverse that. The power of destruction is just pure destructive demonic powers, even if you reverse it, it would still be the same type of energy.