People were talking about Techniloom earlier...
Dragonite with Lum Berry can pick off Techniloom with Extremespeed while taking pretty much nothing from Mach Punch, Low Sweep and Bullet Seed and avoiding the sleep from Spore.
Also, does anyone else think that Dragonite is a great check/counter for a lot of the pokemon that have been boosted by rain?
With Wish support (or Rapid Spin Support but especially wish support), it's relatively easy to keep Dragonite at full health, keeping Multiscale intact. Even without multiscale, Dragonite can switch a field with Stealth Rocks up into boosted attacks of one of the many types he resists and survive, only to have his health replenished.
I use Chansey or Jirachi to Wish pass as I switch in my Offensive DDance + Lum Berry Dragonite and proceed to set up on opponents. There aren't many things that can completely counter it (besides Ferrothorn in the rain, but Dragonite has Superpower now).
When you have Multiscale up, it's a great against Keldeo, Thundurus-T, Tornadus-T and other rain abusers.