>>21247654Something that is so good that it bends the metagame around it to such a degree that it both pushes things that would otherwise be perfectly fine in the metagame out while bringing up things that are otherwise bad to counter it. If the tier loosens up when one Pokemon is removed, that Pokemon is broken. That said, some S rank mons also fit this description. It's all about the ability to be countered without also crippling your team to other threats. This can be argued back and forth, which is why there's a suspect process and why things are rarely unanimously banned.
