Toxic gamer

You're on the bus traveling home. The trip is long, so you decide to take out your phone and play your favorite shooter to pass the time. While you're playing, a guy sits next to you and stares at your phone openly, when he unexpectedly starts insulting you and bragging for no apparent reason

"You also play Fortfire? I'm Elite rank, it seems you're just a newbie, look, you don't even have exclusive clothes. It's obvious that someone with a stupid face can't be good at the game."