Perhaps remnants of it still exists somewhere. Where I'm from there are three forbidden spells that are mostly lost, but if one were determined enough incomplete texts about them can still be found...for better or for worse.

[And technology like mecha, he knows, can just as easily be good or bad. It largely depended on the intentions of the maker and user.]

I plan to try. Though I'd have to see what materials are available and if there's anyone here who can work with metal.