@Rapid SPin: WIth the candle and the jelly around it should be even more difficult to Rapid Spin, since the Jelly will live very long it will make it difficult to Rapid Spin.
And Urugomosus Bulk isnt very good on the physical side, and after Stealth Rock, may Spikes or smoething like that and maybe after tanking on hit to Set-up even a not very effektive Priority Move will finish you off.
I Think how good this Butterfly will be is very much affektet by the role of Stealth Rock in Gen 5.
The mole, when switching in, forces the other player to go into a dilemma about whether or not it would SD or Rapid Spin. It does have a chance to KO Max hp/Max defense jellyfish using a max attack +2 earthquake after SR (not factoring leftovers as assuming Sandstorm is in use). Guaranteed after either life orb or a layer of spikes or any other residual damage. Take that into consideration. And that is with MAX/MAX jellyfish, which I don't see as very common.
I predict most Golems will not invest in a Max defense and HP stat. Assuming max defense with beneficial nature, EQ from +2 Doryzuu nearly OHKOs if no HP investment is made. With SR or life orb, min HP Golem is OHKOed. Max neutral natured defense of Golem and Max HP is OHKOed by a +2 life orbed Doryzuu's earthquake after SR, with the chances of KOing fairly high (barring leftovers) without SR. Without life orb, you only have a small chance of Koing max hp max neutral natured defense golem with EQ, but still can OHKO min Hp max neutral defense Golem. (NOTE: All of these calculations are assuming a Sand Veil and not Sand Power nature, so Snad Power nature should turn those almost OHKOS into clean KOs, possibly not needing life orb or SR)
Chandera is obviously Koed since it is weak to ground.
I can't imagine Dusknoir/Desukan/Spiritomb being able to beat Doryzuu--at best they can burn the mole. A set of Sub/SD/EQ/Stone Edge works effectively here. (Can replace SD with Claw Sharpen and Stone Edge with rock slide or any other similiar new move)
Gengar is outsped by Sand Veil. (In addition, the calcs above were assuming Sand Veil, so you don't have to worry about switching abilities unless absolutely neccessary)
Bannete/Froslass/Mismagius is sort of like Gengar in terms of defense (against Doryzuu).
Shedinja is beaten by stone edge
You should, however, be wary of Destiny Bond from ghosts.
Erefuun might also screw you over if you are using SD. You are also unable to hit Skarmory hard, leaving it a prediction game as to when who will switch/whirlwind/rapid spin.
Desukan is in my opinion a gimmick special dusknoir with nasty plot and mummy.
No, I'm not writing an analysis about Doryzuu; since he is a teammate to moth, I am demostrating how effectively he could get rid of spinblockers while being able to spin away rocks at the same time. Doryzuu clears the way for Urgamoth to sweep, and also threatens the opponent at the same time as well.
The loss of Rotom formes as ghosts is huge. They were the premiere spinblockers of DPP due to thier ability to hit hard and stay a defensive wall. Electric and levitate certainly aided this, as I believe the Rotom forms are a lot less competent without Levitate and the loss of a weakness. As such, because Levitate is such a major factor, I don't imagine Chandera replacing, or at the least following, Rotom-A role for role.
Blissey may turn into a larger problem than I initially thought.