@TheWindel@KoL I suppose that's fair enough, though the guy ideally does need some reason in his backstory to be a mad scientist. I don't just want to write him in as having always been crazy and intelligent, and years of slavery is a perfect opportunity... how about this: the particular piece of demon-corrupted Machina tech that turned him crazy aside, he doesn't have any particular equipment aligned with either demons or humans to start with, possibly for lack of ability to acquire it before then. However, aside from its primary purpose, and as a side effect of what it was used to do to him previously, perhaps he could also use that bit of tech to modify just his wings, changing their appearance between angelic, machinesque, and demonic?