Windsong
stumbling down elysian fields
The problem with this is that, while Misdreavus is definitely a solid choice for most stall oriented balance and full stall, due to the difficulty in taking it down, it's simply not offensively minded enough to fit well onto a spikestacking offense team, because it loses momentum too easily. In my opinion, a SubSplit Rotom would be much more effective, forcing switches, providing decent offensive pressure, and taking on most of the common spinners with ease, especially with the drop in Cryogonal.Personally I think that both Misdreavus and Rotom-N shopuld be given equal consideration. Rotom-N is far more advanced offensively but Misdreavus just won't die. Having played aaginst a few times and trying to spin against it I can confirm that it takes several turns and plenty of long-term planning to bring it down.
And echoing the suggestions of the crowd, spikes stacking offense is definitely the best option for Double Dance Rhydon, letting it get a bunch of KOs that it otherwise would not be able to manage (check Pearl's damage calculations for reference).
And assuming we go with this, as I stated earlier, I believe that the best partner for a spinblocker is Rotom, with the best spiker available being Qwilfish, who offers us a secondary Fire- resist as well as a Fighting- resist, both of which are pretty much mandatory in RU right now. Qwilfish also isn't as vulnerable to being set up on as other spikers, thanks to Taunt, and finds plenty of opportunities to switch in without losing significant amounts of momentum when setting spikes. I would consider Scolipede as the other option for a Spiker, giving the team some offensive presence, but I simply find that Qwilfish is slightly more consistent in setting up all three layers by abusing immunities, which is worthwhile for spikes offense.