Meisters don’t require a guide; they choose from a list or create their own power on a case-by-case basis (which then gets added to the evolving list).

I think a short guide on how to come up with or choose a meister ability would still be helpful! I know when I've apped Meisters my main reason for choosing abilities was because they sounded cool, not because they fit into the SE universe. I've never had my Meisters use their abilities either, and part of the reason for that is definitely because SC doesn't have very in-depth info about how they work (unless there's something buried somewhere?). I realize that Weapons are a more unusual concept and require more explanation, but right now it kind of seems like Weapon appers have tons of info and Meister appers still have to make stuff up as they go along.