Applications of Characteristics to Specific Pokemon
1) Ninjask
It's clear that Ninjask is not much of an offensive threat, particularly because of its movepool which is limited to Aerial Ace, X Scissor, Night Slash, and Metal Claw. These are moves that are easily stopped by Steel Types, for example. Then it is obvious that Ninjask needs quite a bit of support to be able to "sweep" in standard metagame conditions.
However, the biggest threat of Ninjask comes from its ability to pass speed. However, because of its weakness to Stealth Rock and its inability to do anything to common phazers, Ninjask cannot accomplish this task consistently. Ninjask then cannot consistently set up other Pokemon to sweep Pokemon, therefore it is not uber.
Ninjask can wall pokemon like paper can stop a bullet. I think Ninjask's defenses are a non issue here =)
2) Bronzong
While at this the sheer ridiculousness of CM Bronzong allows it to sweep through teams, we notice the number of set ups and clean ups Bronzong needs to eliminate before it even considers sweeping. CM Bronzong will have to spend many turns eliminating and weakening certain threats to even consider sweeping through standard teams. Bronzong is not an offensive threat, so we need to consider the other characteristics.
A Pokemon is uber if a Pokemon is able to wall and stall out a significant portion of the metagame
Sadly for Bronzong, with its lack of a solid recovery move, won't be able to stall out a Pokemon for long - as even Neutral Hits will eventually break Bronzong. While it is capable of completely stopping threats such as Mamoswine, Bronzong is not capable of posing a threat to a huge majority of other offensive threats more than once. Its ability to wall is therefore too limied, and Bronzong can hardly stall. Because it cannot stall, it normally needs to force the opposing Pokemon out using its poor offenses - which is usually limited to Gyro Ball, Explosion, and Earthquake. Hypnosis is not an issue with sleep clause in play and the prevalence of status absorbers.
the ability of a pokemon to consistently set up a situation in which it makes it substantially easier for other pokemon to sweep
This is perhaps Bronzong's biggest strength, its ability to support. We need to however, differentiate between the
ability of Bronzong to support Pokemon and the
actual method of support itself. I think this is the biggest thing one needs to consider when writing up any argument for any Pokemon's ability to Support. Of course we have cases lilke Wobbuffet where the two categories are essentially the same, but I disgress.
What we need to consider is the ability of Bronzong to use certain moves, such as Explosion, Stealth Rock, Rain Dance, Hypnosis, Dual Screen, etc. I don't think I will be able to cover everything but we will see.
Believe it or not, its ability to switch into many threats at least once and explode is a great asset to any team, allowing the player to switch in a Pokemon for free after the explosion. Bronzong is a glue to many teams, as many players during the D/P Era has managed to deal glue their teams together with Bronzong's amazing ability "to switch in at least once, and explode to create free switch ins". But such a support does not make it
easier for other Pokemon to sweep, as the opponent is still more than capable of outplaying the opponent, or carrying checks and counters to the offensive threats. Bronzong is more of a defensive glue to offensive teams, a much needed one, but we note that it does not make the offensive Pokemon
more of a threat to sweep through a given team. Bronzong's ability to use Explosion does not make it consistently easier for a Pokemon to achieve the "Sweeper" Criterion, and it is obvious that Bronzong Exploding hurts the team's ability to stall.
Bronzong is also key support in a Rain Dance team, but as in the offensive team, it does not stop the opponent from being able to deal with critters with Rain Dance boost in any sort of way - while it "boosts" creatures who benefit from Rain Dance, but even if the one turn boost from a Rain Dance is considered too much, then it shouldnt be the fault of Bronzong, but the concept of Rain Dance teams itself.
Hypnosis is 55% accuracy, it is not consistent. Stealth Rock is a move that can be used in many other Pokemon. I don't think they even need to be considered. Then the last thing we need to consider is the Screens.
The lack of speed for Bronzong makes it difficult for it to carry out the rather controversial "Dual Screen" Strategy, because it needs to constantly take a beating. In order to utilize it well, it must use Light Clay, which hurts the overall ability of Bronzong to take hits. Bronzong is not a great user of Screens, as there is not much stopping Pokemon from setting up on Bronzong while it screens or beating Bronzong down. And this does not guarantee that the Pokemon who will receive the screens will be effective, but only through a well planned strategy. Bronzong's ability to use does not make Dual Screening "broken", as Bronzong is normally sacrificed, and the number of Pokemon capable of setting up on Bronzong is unbelievable
3) Wallrein
Gen. Empoleon pointed this out.
I find this flawed because what about pokemon like Stall Walrein? He has the ability to Stall out the entire metagame with Substitute + Protect + Hail + filler with toxic spikes support. So should we define Walrein as an "uber" I don't think so. SO I supose that I would like to change it to, "A pokemon who can wall and stall out a large portion of the metagame without support coming from other pokemon"
This means that pokemon like Stall Walrein are not declared "Uber" by your standards.
I'm not too certain about adding the concept of "support coming from other Pokemon" bit because I thought it would be implied, but it may be good to note. Stallrein was a very good example and I'm thankful that it was poitned out - but Stallrein heavily relies too much on Hail and it literally needs to be able to come in without taking a nice hit, and the opposing Pokemon need to be slower (or if it's fast it can't hurt it enough). It is true - that once Stallrein is "set up" it is difficult to shut down. But I dont think the concept of support will matter because as I have pointed out "Pokemon is a game of making your Pokemon broken to your opponent" and Support essentially accomplished that.
And in the end, I don't think Stallrein is as unstoppable as Lugia, since
Analysis said:
OU (Toxic Stall set): Since he relies on Toxic to deal damage, most Steel-types can cause problems. Earthquake can dent them, but the likes of Metagross and Jirachi have the defenses to handle a few hits. Metagross can fire off Meteor Mash or Thunderpunch, while Jirachi can smack Walrein around with Thunderbolt or Grass Knot. Empoleon can beat it down with Grass Knot and also resists Water, making switching in a little easier. Empoleon can also Roar away a Substitute, but rarely has enough Speed EVs to ensure it will phaze Walrein before being phazed itself. Bronzong walls it if it doesn't carry Surf, but can't do much in return unless it has Grass Knot.
Tyranitar screws up its Leftovers recovery and also removes Hail, making Ice Body useless. Repeated hits from Surf hurt, but Tyranitar will likely come out on top by firing off powerful Stone Edges and can also Taunt Walrein, effectively shutting it down. Gyarados can sponge hits from Ice and Water attacks and set up with Dragon Dance, before KOing Walrein with Stone Edge. Like Tyranitar, Gyarados also has access to Taunt. Suicune is faster than Walrein can easily Roar it out, taking minimal damage from any of the Walrein's attacks. Clefable was already mentioned, but it makes an even better counter to Stallrein than it does for the other sets. It is immune to the effects of Hail and poison and can Encore Walrein's attacks, before setting up Calm Mind or simply hitting back with Thunderbolt. Breloom can be a problem if you don't have Blizzard, as like Clefable it is still able to recover HP during Hail and can't be worn down by poison.
Many of these Pokemon are top tier OU - and the abundance of Steels in addition to that make it clear that Stallrein is not capable of stalling out a good majority of the OU Metagame, particularly because it is very situational and its need of support.