>>30056749If you have a weapon that's so good that it gimps you for not using it, it's overpowered. If Aegis is virtually impossible to counter and counters almost the entirety of the metagame, it's overpowered.
If they're overpowered, you can nerf them and put them back into the balance of the game (or ban them if you're a community tiering system like Smogon). If they're overcentralizing, no matter how hard you nerf something you can't get rid of its presence without removing it from the game entirely.
By my own argument, Stealth Rocks is actually overcentralizing, because if you ban it people will just use Spikes, if you ban that they'll use Toxic Spikes, and if you ban that they'll use Sticky Web. The overcentralizing effects of hazards only go away when you remove them from the game entirely, that's what' overcentralization is. Your gun isn't overcentralizing because ultimately it's the best gun because it's the best at shooting people, making it overpowered, and once you nerf it a different gun will be the best at shooting people.
Overcentralizing, by the general publics term, is "It's in the game and I hate it so it's bad please remove it" and that's the entire argument people try and base entire tiering discussions on. It's something people have significantly stopped using after Gen 4, but low level players still cling to it as if it was some sort of gospel.