Well the demon is balrog and he isn't one to be messed with. He ends up "killing" Gandalf before he comes back as Gandalf the White

Lol, a Balrog is not a demon

I saw the movie ;-;

Movie is like 5/1,000,000,000 of the knowledge of arda

I would take away 3 of those zeros if you actually pay attention to the dialogue very closely

I'm not talking about the books either. Like I said, I'm talking about the entire history of arda