system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU/Spiderman: Far From Home] What would Mysterio have stated his fake powers came from?

We all know Quentin Beck and the Mysterio persona is entirely fictitious. He has no real powers and is merely using special effects. But for the purposes of the ruse, when people asked him "hey what exactly can you do?" what is he likely to say? If I were a lay person guessing I'd say his powers are a mixture of magic and tech. He seems like he has some kind of Dr. Strange thing going on with the way his green aura would contort in to glyphs but his suit seems to be Iron-Manesque.
gpt
Most heroes are never asked to explain their powers.  Many couldn't do so even if they were asked.  For example, when you ask Thor about his powers he'll yammer on about how his hammer makes him worthy to wield lighting, but even he didnt know he could shoot lighting without the hammer before Ragnarok.  

So for a showman like Beck, it'll be easy.  He comes from another dimension where science is more advanced.  That which you call magic is just another kind of science.  But, he's a warrior, not a scientist, he can't explain his weapons, only use them to kick ass and take names.