Here is Smogon's current official stance on Wobbuffet:
Wobbuffet D/P Analysis said:
Wobbuffet's May 30, 2008 movement from the Limbo Tier to the OU tier is a direct result of no conclusive evidence of it overwhelming the standard metagame on Shoddy Battle's Ladder arising after three months of testing. Its effects on the standard metagame will continue to be closely monitored, and it will be as tiered as fairly as possible as the metagame evolves, just as any of the other 492 Pokémon.
The impression that I am getting from that statement is that Wobbuffet has not been an overcentralizing figure in the Shoddy metagame--that statement few will argue with--thus it is not Uber. One problem: have we even defined what is and is not Uber?
We can make a logical explanation for Pokemon going from Uber to OU; we have done it with Wobbuffet and Deoxys-S. 'If it doesn't overcentralize OU, it shouldn't be banned from OU.' That, I believe, is our explanation. However, we haven't been able to do the same for Pokemon going from OU to Uber. Therefore, until we establish that definition, we just go with 'If it doesn't overcentralize OU, it shouldn't be banned from OU.'
The problem I have with that: is that the BEST reasoning? Decisions about whether certain Pokemon need to be banned are subjective in nature. No matter what we use to help us make those decisions, the decisions themselves are ultimately subjective.
As far as I'm concerned in making those decisions, objective evidence should only support the subjective decisions, not actually make the decisions themselves. That's why the Wobbuffet reasoning seems "backwards" to me. We seem to be looking at the objective evidence to make a subjective decision.
As for the subjective decision to be made in the case of Wobbuffet, is overcentralization even the right question to ask??? If we, as a community, are trying to develop a metagame that "promotes skill," shouldn't the first question to ask be if the Pokemon in question actually promotes skill?
From what I understand (since I did not play Pokemon competitively in RBY), evasion moves such as Double Team and Minimize were originally banned because they promote luck instead of skill. As far as I know, we didn't need objective evidence to tell us that.
The Wobbuffet argument I am seeing most often is that it does not promote skill. Many people are making this argument, including several that have used Wobbuffet to great effect on Shoddy. We are seeing logs that seem to support this argument. From what I am seeing, the way to use Wobbuffet can be outlined in a few simple steps almost regardless of the situation. Does that really promote player skill?
I don't think it does. I would want Wobbuffet banned for that reason.
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Since the discussion shouldn't all be about Wobbuffet, I should go into the case of Garchomp, shouldn't I?
I defined above two subjective decisions that I believe we should make in determining whether something should be banned from OU:
1. Does it promote skill? If not, ban it.
2. Does it overcentralize OU? If so, ban it.
First, does Garchomp promote skill? Well, I can't claim to have actually battled in the last few months, but I don't reasonably see how it can just Swords Dance + Outrage through absolutely everything. I believe it takes skill to use so I'll answer that question "Yes." Next question.
Does Garchomp overcentralize OU? I suppose a certain strategy is necessary to defeat it as TAY has been the latest to elude to, but the current objective evidence doesn't seem to show any overcentralization. I'll answer that question "No."
However, I would support a temporary removal of Garchomp from ladder play to see if Garchomp would be an overcentralizing figure. I like to use, as a general rule, the premise that if the removal of a Pokemon from a metagame increases the number of Pokemon in the metagame OR the addition of a Pokemon in a metagame decreases the number of Pokemon in the metagame
by a material amount, then the Pokemon is an overcentralizing figure. I also like to use a 10% figure for materiality in this rule. In other words, if the number of Pokemon changed by at least 10% as a result of the addition or removal of a Pokemon, then that Pokemon is overcentralizing.
Okay, I'm starting to ramble like I usually do on these topics. I'll stop now.