>>17105
I'll help with the basic setting.
>Spells use "aura power".
>Aura Battlers Mechs use aura power too, everything uses aura, even things like explosives.
>Using aura it's possible to travel to a world, which is actually our earth, where aura is more powerful.
>Travelling back and forth risks exploding the shit out of everything with an overcharge of aura.
>There's a spell to commit mass suicide with aura, though it doesn't affect fairies.
Shitposting aside, a setting like Byston Well could work extremely well for an rpg, and you could easily homebrew a system with pathfinder or whatever variant of OGL to keep it simple and achieve synergy between the aura mechanics and the rest of the world, robots included.