[quote=@Lucius Cypher] Frankly I'm taking a lot of liberties based on what we know about Penny, but if they created a machine that can produce Aura, than surely they could have made machines that react and possibly be powered by Aura. Of course that's also assuming Penny is being powered solely by this aura generating machine, though this is where Gren is different because he was once a normal fuanus and can produce his own Aura (Despite most of his fleshy bits mostly being in his head). [hider=Spoilers for those who haven't watched the episode] Which is why an EMP wouldn't work on Gren because if Penny is solely powered by this aura machine, I can see how Pyrhha's magnetism may have effectively "Shut down" Penny's aura, which is what allowed her body to be cut apart. Gren's Aura isn't produced by a machine, but his own "soul", which he still has even if he's missing a large amount of his body. [/hider] [/quote] We're entering into the hypothetical here but I was under the impression that Penny was powered by something to produce an aura not powered by aura. Which means that she has a separate power source that allows her to produce aura. Electricity ==> Aura ==> Combat Protection Not: Electricity ==> Aura ==> Powers everything else ==> Functional Robot The logical thing to think is that Penny is powered by a more advanced version of whatever powered the Atlesian Knights which don't have an aura. There is no reason to assume that Penny's aura has any part of how she is powered.