Alright I'll probably go with the personality motif in more ways than just the powers (you'll see what I mean.) Also expect it to be a while before the RP is posted, I need to regain my focus. I AM doing the RP, I've committed to it and love the idea and the limitless possibilities of it I just need to wait for my focus to return. I've had some awesome ideas for it though. The name of the villain is TSOAS (the sum of all sins) and as you can imagine it'll be portrayed as more of a force than a person that swallows universes whole and mutates everything inside into a demonic version of their inner evil transforming the universe into a living hell. The "good guys" in the story if you can call them that are an order of inter dimensional knights that have banded together from many different intelligent species both extant and horribly endangered (because TSOAS ate their world) under a mysterious king named Magnus. Magnus has successfully fought back against TSOAS's invasions on many worlds but when he saves a world he conquers it and puts it under a type of police state so that he can protect it from other invasions. Of course many people have said that he simply wants to conquer the universe. The thing is that he's done questionable things to keep his power over these universes and fight TSOAS (purges, destruction of TSOAS infected planets, violation of liberties such as free speech, assembly, press etc.)
In any event the story will start out with our world being devoured by TSOAS and the knightly order fighting it. In the end Earth loses and falls to the corruption and those who survive are drafted into the order. Knights can come from any race anywhere (except demons, they have a rule against demons) and are always clad in what look like a badarse suit of plate armor that's appearance varies based on personality (you like dragons, your armor might have a dragon theme to it, I believe in black and white morality my armor would be an awesome blend of the angelic and demonic etc.) Knights are armed with very advanced technology and magic depending on their personality.