Kabutops never runs Rapid Spin in OU, since its job is to sweep and clean under the couple rain turns. It's not coming in often enough to care about hazards, considering rain is such an offensive playstyle anyway.
Obviously it's going to be switching around a lot if it wants to wall your rain! jeez. Just because Kingdra has a shallow movepool doesn't make it weak, it's Water STAB is INSANE after Rain. I wouldn't say that Kabutops wants priority since it's under Rain with Swift Swim, but OK. Azumarill utilizes Superpower to hit Ferro a lot lol. AND Rain teams usually run megas like Heracross, Scizor, and Pinsir as a few examples to get rid of bulky grasses. Rain is a playstyle all in its own, so obviously it's gonna have some form of team support. It's only in like B+ or A-, it's not perfect like S lol.
A-==>B+
Mega Pinsir is far from a bad Pokemon, but the current OU metagame is not in its favor. Several of its checks and counters have increased in both viability and usage which in turn decreases Mega Pinsir's already limited number of setup opportunities. Things such as Skarmory, Mega Metagross, Mega Diancie all can easily cut Mega Pinsir's sweep short and due to its 4x SR weakness, which is further compounded by its lack of recovery, Mega Pinsir will rarely get another chance to setup and sweep after it switches out. Because of these issues, Mega Pinsir requires quite a bit more support than nearly everything in A- Rank, making it more difficult to fit onto a team. In the current metagame, I find Talonflame to much better sweeper than pinsir as, despite its power loss, it has a larger amount of switch-in and setup opportunities due to its better typing and Roost, has an immunity to Will-O-Wisp, and has slightly more versatility as a sweeper. Overall, I feel Mega Pinsir is a bit underwhelming compared to a majority of A- rank and think that it fits much better with the pokemon in B+ rank.
IMO TG+RD is its most effective set, though not its most common. The utility of an immunity to status is pretty big, and the power of a +3 rain-boosted Scald is nothing to be scoffed at. However, I assume the reason that the TG+3 attacks set is used more is due to the extra coverage, so really it just comes down to your team's makeup.
It is just me who finds it to be its most effective set. Hence the IMO. However, I understand what you're saying. The coverage that you get on TG+3 attacks is very valuable (and probably what pushes it over the edge to best set generally), but my playstyle tends to lean more towards the nature of the TG+RD set so there is bias on my end :].
That's highly team dependant and doesn't break stall as well, TG 3 Attacks is probably its most used set with stuff like Scald TG Ice Beam HP Fire or Psychic or Energy Ball, there are fillers depending on what your team needs, tbh. While that set is decent all on its own I don't see it as 'best'.
Seconding this though I've mostly had success with Pursuit or Low Kick AoA Weavile instead of SD. I'd also like to add that Weavile benefits greatly from a number of spikes in usage on the part of pokemon that are weak to Weavile's dual STABs namely the rise of the 4x ice weak grounds (Lando, Garchomp and Gliscor) and the rise of psychic types including Mega and normal Zam, Celebi, Jirachi, Slowking and smogon's lovechild Reunclus as well as the continued promience of the Lati Twins.Controversial nomination but whatever
Weavile A- ---> A
Weavile is a great pokemon atm. Thanks to its great speed tier and powerful dual STABs, it can outspeed a lot of common mons and destroy them. SD Weavile in particular is a set that I've been experimenting with and I have used it to great success. SD Weavile can lure in pokemon such as azumarill and specially defensive skarmory and severely weaken them. Icicle crash + knock off + low kick is really nice super effective coverage and lots of pokemon that commonly try to switch into weavile either get screwed by the SD set or just hate losing their item in the cases of keldeo and azumarill. The increase in usage of pokemon such as landorus, garchomp, tornadus-t, all pokemon that are beaten by weavile, is quite beneficial for it.
Weavile is a great late game cleaner and its dual STABs are really annoying to switch into, while the SD set can lure in checks and counters and severely weaken them. Even though it is quite frail and has a weakness to SR, it should not be used to switch into attacks and weavile is going to be cleaning up a weakened team late game so SR weakness isn't too bad for it. Yes it's fraility makes it susceptible to priority, but wallbreaking power and late game cleaning far outweighs that, imo.
Can't get any good replays besides this shitty low ladder one but basically it just shows off that weavile is a great late game cleaner. (Had one against wcar where weavile singlehandedly took down like 4 mons but I can't find it :/)
http://replay.pokemonshowdown.com/ou-233290964
LOL. Who cares if you moves are limited when your STABs already give you amazing coverage? Boy, only 3 viable pokemon resist both his STABs, and none of them has reliable recovery. It's not like kingdra will usually need those "desirable" coverage moves, simply hammering them early with hydro pump will weaken them for the next round so much they won't be able to switch!
