Sorry to bump this, but I feel it's important for someone to admit when they are wrong online. There doesn't need to be a lore requirement - I think it would be cool if there was one, but it's definitely not required for some balance reason. Any warlock build is just fine, and if you want to take a bunch of turns sitting in darkness pew-pewing everything, that's fine too (no sarcasm intended).
My opinion about how this game is balanced has changed significantly and to explain anymore would go off the general topic of game story, but thank you all for your input and having a small conversation I could enjoy reading because I don't know much of anything about D&D.
