Let's make a topic similar to the Ask A Mod threads, but focused on DC Lore. Help flesh out the world of Valkemare by asking those burning questions you need answered.
Chances are whatever's being asked is going to reach into territory that I haven't thought about, so I'll be making a lot of stuff up as I go and/or giving non-definitive answers, so insert the usual disclaimer about taking everything here with a grain of salt.
HSOWA.
I feel like I've used a few different words in the past, so I guess there's not currently an official word. There's certainly not one that's a proper noun (like Pokemon Trainer is).
Humans can use mana, though there is some sort of vague, unspecified "processing" required to transform mana into something humans can safely use. Like the encyclopedia, exposure to raw mana can have transformative effects (my current headcanon is that there are several different "sub-races/communiti