Factionalism - A group in a game or a story, usually with cool names and ev

A group in a game or a story, usually with cool names and even cooler arguments. They're like the cool people in the class, only in a game.

My faction in the game has a cool name, and we fight other factions all day.

My friend's faction is called 'The Great Ones' and they think they're the best.

My brother joined a faction called 'The Chosen Few' and now he's obsessed with it.