Almost like ambient magical energy... Only certain materials can collect it over time in a way it can actually be used.

[ That there's an equivalent for electrical energy is rather mindboggling in the good way. ]

Well, if you ever need a place to stop or someplace to lay low, there's the Midnight Hotel. Fighting isn't allowed in there and everyone seems pretty respectful of that.

[ just hope you don't run into the cynophobic resident there, Bladewolf ]