J Clarked
A huge fake who thinks he's the king of everything and will make your life a living hell just to prove it. You'll find him hanging around Minecraft like he owns the place.
He brags about his Minecraft skills even though he can't beat you in a 1v1.
He sends you a message saying he's the best at Minecraft and then quits the game 5 minutes later.
He yells at you for beating him in a game and then spends the next hour talking about how he's the best.