@DC The Dragon Yes blade is a quasi magical character but I suppose the comics i've read him on just focus on his abilities as being 'enhanced' rather than anything too mystical but I get your point.
I don't want to strictly write off everything non scientific, I'd give a little wiggle room to 'unexplained' phenomena, but yes broadly this is a sci-fi world and someone like iron fist or Dr Strange wouldnt really fit in the universe im trying to create.
However I think you have a good character, if you swap out the demon's blood for another explanation of his powers I'd approve him.
But its up to you.
But yea long rant short. I just need a simple yes or no. (And I think I got a no.)
That's correct, looking forward to any other character ideas you might have.