Those sissy boys in the army, they gotta have their 'bots and guns, shiny vehicles and iron suits. Me, I don't need none of that. I've got everything I need on me.
Cagle, Claremont Class Biomod Mercenary
If you want to add a "supernatural" touch to your campaign, define the rules of magic and the universe. Make your players comfortable with those rules. Then your new supernatural creatures must then break those rules.