Final Magic: Infinite Reflections
There is a legend in this world, a being of unimaginable power, a person who wields unstoppable magic, the undeniably strongest in the world as well as it's indisputable ruler...
That is to say, you.
However, who's to say there's only one world?
Being the immensely powerful being you are, one day you eventually discovered what others in the multiverse have termed 'the Second Magic'. Crossing dimensions, you also occasionally meet other people who are just like you; (i.e. extremely powerful, ruling their world, jumping dimensions).
Well, well, well, there's only one thing you can do, right?
This just won't do, there's no way you can just leave things the way they are. Ally with those similar ideals as you, and crush all who oppose you, and conquer all the multiverse!
Anyway, that's enough with the background and let's get down to business.
You are an overlord/planeswalker/whatever you want to call yourself (being the godly level person you are, the people of your world are hardly going to disagree, right?).
There are 5 'colors' you can be aligned to. White, Red, Blue, Green, Black. Each color specialize in different things. Players of the same color automatically start allied to one another and neutral with everyone else.
Eh, that's enough of a general gist of it, I'll be getting into specifics later. Any questions or thoughts or ideas for now? (still in the brainstorming phase, technically)