I'm a little concerned that we're spending too much time talking about movepools and not enough talking about specific counters. We're generally discussing things in the direction that I wanted us to move in, so I'm happy with that, but I kind of wanted to come to a consensus on some specific threats. As you read on, due note that any Pokemon/group of mons that's bolded is something that I am effectively supporting as a counter.
First of all, I have this idea in my head that most defensive Pokemon that are inherently used to sponge hits and tank out should not be in the direct jurisdiction of this Pokemon, because then you would be turning it into a wall breaker. Examples of threats that I would be very happy with NOT trying to "counter" are defensive versions of Swampert, pretty much any Pokemon known as a "bulky-<type>", special tanks like Blissey and Snorlax, and defensive RestTalkers. The idea behind this concept in the first place is that there is a variety of threats in the metagame that require an immediate response, and we're building a Pokemon that can be tossed into a final team slot and customized to deal with any one of these threats situationally. However, this does not equate to using CAP10 because that weakness is to something like stall, and it also doesn't equate to using CAP10 because we want to BREAK something. Swampert is a particularly interesting case, because if we decide to not give this thing a Grass move, we are opening up the door to making Swampert a soft counter, or even a hard counter if we don't give it a strong enough Water STAB, and I think this is a very healthy thing. Another interesting case is defensive Celebi. Again, this is not a THREAT. Defensive Celebi is used primarily to switch into threats and counter them, and to be able to beat it is to be breaking a wall. We have opportunities in the following polls to make sure that a defensive Celebi can feasibly switch into a good number of our sets and become a soft counter. Again, this is a GOOD thing.
Basically what I'm trying to say is that I think in order to be under the jurisdiction of the utility counter, you need to be a threat of some kind in that you're initiating some kind of strategy. Walls and tanks exist largely as fallback, and they're not really initiating anything at all. To try to beat these Pokemon is not a part of the job description we've been handed by the concept, and as such, I support making a good number of purely defensive Pokemon soft/hard counters to this. Examples are, of course, in my post.
By midnight, this thread will have been open for two days. It makes sense to close it then, but considering how the next few hours of discussion go in terms of activity, I might choose to keep it open for an additional couple of hours (let's say until like, 3 AM). So keep this in mind.