I've been around five years I know plenty about a good CS and how to identify overpowered abilities don't worry. I read every bit of your lore as well and if the old guilds group system still existed I'd sat you shoulr make groups to document the chapters and lore. I had something exactly like this years ago, ours was called "Hands of Fate: Orgins." I did custom visual arts for everyones character and we had an amazing start. Sadly people quitting killed it in "Chapter Three: Unbound."