Pokemon deemed too powerful for the well-being of the metagame are called Ubers and dumped into a tier of their own. Randoms and brs tend to ignore this due to their general lack of knowledge of competitive play (or anything) and consider them prime choices due to their sheer power and high stats. It's common to see newbies and noobs with over four ubers. However, the uber metagame is still there to give everyone a chance to use these Pokemon. Whenever a player has one uber or more on their cloaked team, a red message will apear on their challenge window saying "[number of ubers on team] ubers."