In my opinion there is no difference between magic and science. Just because something is not scientific in nature at the first glance doesn't mean it can't be explained thru some obscure science mumbo jumbo.
Hanzo dragons? Solid light projection that cause burning UV whatever damage when it passes thru living matter.
Genji sword enhanced by dragon like flames similar to light sabers.
Kiriko creates some illusion projection accompanied with ghost fox hologram and some ability enhancing gas that makes everyone perform their best. Her healing papers are just some sci-fi bandaids that fly towards heat sources of people around and apply nano bots on them that instantly heal their wounds.
I mean there is it very thin line between science and magic and in my eyes the heroes who seem more magical are just using distraction illusion and elaborate tricks with their technological tools to confuse and make it hard for their enemies to clearly understand how their tech works as it is hidden to look like magic.
That's about it.