Androids

What exactly do you mean by that? Permanent hearts are still permanently untradeable upon equipping; you can't reuse it.

As a DB, I have 1 primary and 2 secondary stats, if I played xenon I'd have 3 primary. Just the base stats itself is more important than the attack once you get around enough stats in. It beats having only 1 type stat + attack, although I'm quite saddened its untradable entirely. I was hoping those fires of phoenix or whatever would've worked on them too but oh well.