Its Pokédex entry is a reference to a thread made on /v/ where a person made a thread for Video game characters that remind them of themselves, and he chose Kefka from the game Final Fantasy 6 and described him as such.
Its original method of evolving Docee to Donutsteel is trading with a Metal Coat, I would've prefered this way of evolving this original thing but then I commented the name of another evolution for Docee who uses the Metal Coat for evolution so it can't work anymore.
It may be a reference to the Coldsteel copypasta
Donutsteel is a completely original design and is in no way a combination of Metal Sonic and a Donut and do not even suggest that and that means you Kevin, Fuck you, nobody likes you.
It's name is a combination of "donut" and "steel" or "do not steal"