This has nothing to do with "Steppenwolf" as such (I am half way through "taraNtula" by Bob Dylan) , but I had recorded "Batman vs Superman" and "Justice League" (although I and many still say "taped") and started "Batman vs Superman" and then thought is was not very good (I have a TIVO). I deleted it after ten minutes then realised that "Justice League" was the follow up, so recovered and started watching it.
Batman and Superman are not exactly paragons of virtue but Jeremy Irons as Alfred is worth the price of admission (many of his statements based on "Oh you screwed up again , so I will sort it out") , it turned out that it was more that watchable and I enjoyed it.
So don to the point of the post , in "Justice League" the main baddie is the Golden Steppenwolf , though he didn't look very wolf like and is just a standard devil figure intent on bringing the world to heel and into darkness based on some cod religious mythological configuration , and this reminds me of the text of "The Pentateuch of The Cosmogony" by Patrick Woodroffe (art and text) and Dave Greenslade (music) .
I enjoyed "Justice League" even more than "Batman vs Superman" and it comes out that Batman is really past it and the Justice League ends up consisting of Batman , Wonder Woman, The Flash , Cyborg , Aquaman and eventually Superman. Next up is "Aquaman" for me because it is available on Amazon Prime.
One of my favourite lines (and there are lots of those) is when Aquaman asks Batman "What's Your Super Power?", Batman answers "I'm Rich".
Growing up I loved Greek, Norse and Irish mythology as well as moving further afield and these have provided fertile fields for a lot of the DC and Marvel Universes, the most obvious being Thor and Wonder Woman's origins.
I wasn't sure what music to share , but given the Justice League scenario we will go for "End of the World" by Andy Mackay from his debut solo album "In Search of Eddie Riff".