The Piranha Plant of Super Staff Bros
art by Dibs The DreamerMost of you know the drill by now, but if you don't: viability rankings are a method of sorting Pokemon in a given tier based on how good they are in said tier. S rank is reserved for the defining Pokemon of the tier, while D rank is the place for near unviable Pokemon that have almost no worthwhile use in the metagame. As the metagame changes, the rankings are periodically updated by players who are well-versed in the tier. Note that ranks are currently done alphabetically and not by viability, this may change like it did last gen.
Do not post one-liners in this thread. Unless it is an exceptional sentence that is able to justify or explain something in a few words, one-liners rarely contribute anything of value to a thread. For NFEs not already included in the viability rankings (or even already included): put the effort into actually investigating its uses in the metagame and providing substantial FACTS and REPLAYS to prove your point before you post. Opinions contribute very little to the discussion if they do not have something to back them up, nor do posts that look at a single point and ignore everything else that has been said. When arguing for a Pokemon's ranking, account for opposition, and do not attempt to ignore the drawbacks of a Pokemon either.
If nominating an unranked Pokemon to be ranked, it is highly recommended that you get feedback from the PU room and/or Discord beforehand to make sure that there is a concrete reason that said Pokemon deserves to be ranked.
For this thread, remember this: it is not on the community to do the research and debating for your proposed change. If you want something to rise, drop, or be added, please do the work to gather the evidence. And if you made a nomination that didn't go through, it didn't get ignored, and feel free to ask for reasonings by VM'ing a mod, or asking in the SQSA or PU discord chat (but please do not ask in this thread). Also contact a mod if you find a small error (Pokemon being out of alphabetical order, etc.) rather than posting in the thread about it.
PU does not use rank descriptions like some other tiers do. Each Pokemon in a rank should just be seen as above or under Pokemon in other ranks rather than needing to fit a certain set of criteria.
PU Viability Rankings