Here's my OU Rain Dance team. It's working relatively well for me for the most part, but I've been having problems with some specific opponents and so I was hoping you guys could help me out!
Azelf @ Damp Rock
Jolly ( + Speed, - S. Atk)
Levitate
252 HP/4 Atk/252 Spd
Thunderpunch
Rain Dance
Stealth Rock
Explosion
I've found my Azelf lead works pretty well. Against the random, taunting, flying leads (Gyarados, Aerodactyl), I can just hit Thunderpunch. Gyarados goes down, and Aerodactyl usually takes a little more than 60%, a safe 2KO w/ Leftovers. Thunderpunch is also relatively strong against Ninjask; when they decide not to X-Scissor (which they always do for some reason) I can use my set up moves on the turns it Protects and Thunderpunch on the turns it Substitutes. After set up games are over, he's a bomb and almost always manages to take one of the other team down with him.
Right now most of the EVs other than max speed are in HP for a little bit of bulk. Should I move EVs to attack to pick up stray OHKOs that I'm just missing now? Would one of the defense stats make better use of a few EVs than HP? Would the set be more effective with another item?
Edit: I've tried running him as DualScreens+SR+Explosion, but I really don't like it much. I am open to replacing Thunderpunch with something else, but I can't think of anything that would do better.
Zapdos @ Damp Rock
Bold ( + Def, - Atk)
Pressure
248 HP/228 Def/32 Spd
Thunder
U-Turn
Roost
Rain Dance







Azelf @ Damp Rock
Jolly ( + Speed, - S. Atk)
Levitate
252 HP/4 Atk/252 Spd
Thunderpunch
Rain Dance
Stealth Rock
Explosion
I've found my Azelf lead works pretty well. Against the random, taunting, flying leads (Gyarados, Aerodactyl), I can just hit Thunderpunch. Gyarados goes down, and Aerodactyl usually takes a little more than 60%, a safe 2KO w/ Leftovers. Thunderpunch is also relatively strong against Ninjask; when they decide not to X-Scissor (which they always do for some reason) I can use my set up moves on the turns it Protects and Thunderpunch on the turns it Substitutes. After set up games are over, he's a bomb and almost always manages to take one of the other team down with him.
Right now most of the EVs other than max speed are in HP for a little bit of bulk. Should I move EVs to attack to pick up stray OHKOs that I'm just missing now? Would one of the defense stats make better use of a few EVs than HP? Would the set be more effective with another item?
Edit: I've tried running him as DualScreens+SR+Explosion, but I really don't like it much. I am open to replacing Thunderpunch with something else, but I can't think of anything that would do better.

Zapdos @ Damp Rock
Bold ( + Def, - Atk)
Pressure
248 HP/228 Def/32 Spd
Thunder
U-Turn
Roost
Rain Dance
My Kingdra set tends to work very well for wallbreaking. It does little to nothing to bulky waters, though, and Zapdos deals excellently with them. It can outstall them if it's not Toxiced, although Paralysis does screw with him a little bit. Against types weak to it (Celebi, for example), U-turn does decent damage, but in general it's really not all that effective. Having two pokemon with U-turn allows me to bounce back and forth between Zapdos and Scizor, who of course does quite a bit with his U-turn. Rain works well with Zapdos, letting his STAB Thunders hit with 100% accuracy. At 383/289/216 for the defensive stats, Zapdos is relatively specially bulky and really physically bulky, tending to survive unboosted stone edges and ice punches.
I don't actually remember why I picked up the 32 Speed EVs. The set seems to work relatively well against most of the foes it's intended for, but as always there's room for improvement.
Scizor @ Damp Rock
Adamant ( + Atk, - S. Atk)
Technician
248 HP/20 Atk/4 Spd/236 S. Def
Bullet Punch
Superpower
Rain Dance
U-turn
I don't actually remember why I picked up the 32 Speed EVs. The set seems to work relatively well against most of the foes it's intended for, but as always there's room for improvement.

Scizor @ Damp Rock
Adamant ( + Atk, - S. Atk)
Technician
248 HP/20 Atk/4 Spd/236 S. Def
Bullet Punch
Superpower
Rain Dance
U-turn
Scizor is an excellent rain dance supporter. His real weakness, fire moves, is sponged by a 4x Kingdra resist and a 2x Latias fire resist. With STAB Technician Bullet Punch, Scizor revenge kills really well, or cleans up after a Zapdos U-turn or a horrified Swift Swimmer switching out when they ran out of rain. As it's the only priority move on the team right now, it's really appreciated. He has 4 speed EVs invested (to outspeed Vaporeon, perhaps? I have no idea why, as there's only one other base 65 in OU...), and the rest goes into hit points and special defense (putting his defensive stats at 343/236/255) with the exception of 20 EVs for attack. The HP EVs were reduced by 4 to allow him one more time in against stealth rock. It seems like a relatively good combination for the most part, but as always there's likely a better EV spread out there.
I had Roost on Scizor for a while but found it wasn't doing a whole lot of good, so I switched it out for Superpower.
Kingdra @ Life Orb
Swift Swim
Rash ( + Atk, - S.Def)
32Atk/232Spd/244S.Atk
Dragon Pulse
Hydro Pump
Draco Meteor
Waterfall
I had Roost on Scizor for a while but found it wasn't doing a whole lot of good, so I switched it out for Superpower.

Kingdra @ Life Orb
Swift Swim
Rash ( + Atk, - S.Def)
32Atk/232Spd/244S.Atk
Dragon Pulse
Hydro Pump
Draco Meteor
Waterfall
The star of the show, Wallbreakdra!! 232 Spd outspeeds +1 positive nature Latias and Gengar with rain. The set breaks walls like a champ, with Hydro Pump at 270 base power in the rain and Waterfall at 180, coming off of 315 special attack and 234 attack, respectively. Waterfall always 2HKOs 24HP/252Def Blissey in the rain, the reason for the 32 attack EVs.
Toxic doesn't bother Wallbreakdra too much, and neither does Sleep provided I'm against some utterly useless Pokemon like a Blissey. Burn's aren't really a big deal either. I'm also considering switching to RestChesto to give Kingdra two shots at wall breaking, but I don't want to lose my LO bonus. It's able to sweep now if needed, as under the rain it's got plenty of power, so I'm hesitant to remake it as a sweeper and take away some bulk -- it's brilliant typing and relatively good 291/226/203 defensive spread make it a wallbreaking champ.
Ludicolo @ Expert Belt
Swift Swim
Modest ( + S.Atk, - Atk)
58 HP, 252 S. Atk, 200 Spd
Giga Drain
Ice Beam
Hydro Pump
Focus Blast
Toxic doesn't bother Wallbreakdra too much, and neither does Sleep provided I'm against some utterly useless Pokemon like a Blissey. Burn's aren't really a big deal either. I'm also considering switching to RestChesto to give Kingdra two shots at wall breaking, but I don't want to lose my LO bonus. It's able to sweep now if needed, as under the rain it's got plenty of power, so I'm hesitant to remake it as a sweeper and take away some bulk -- it's brilliant typing and relatively good 291/226/203 defensive spread make it a wallbreaking champ.

Ludicolo @ Expert Belt
Swift Swim
Modest ( + S.Atk, - Atk)
58 HP, 252 S. Atk, 200 Spd
Giga Drain
Ice Beam
Hydro Pump
Focus Blast
Ludicolo, the last member of the team, is an awesome special sweeper. Giga Drain (90 BP) is only a bit weaker than Energy Ball (120 BP), and the HP it restores has really helped Ludicolo last, especially when coupled with the Expert Belt in place of Life Orb. Hydro Pump tends to be my main attack, though, used for most everything. Rock or Rock/Ground get Giga Drain when I need the health, or when I know it will KO whatever's out and don't want to risk Hydro Pump misses. Ice Beam is for Ludi's fellow Grass pokemon and flying types, and Focus Blast is there for a couple odd Things (if I catch a Blissey switching in, for example). I ran it with Energy Ball for a while but I wasn't picking up enough KOs and 2KOs for it to be worth the loss of life gain. I wouldn't run Grass Knot because I see more Vaporeons with this team than all the other water types combined. Ludicolo speed is 226, compared to Wallbreak Kingdra at 225, enough to outspeed a Salamence after a Dragon Dance and hit first against other Swift Swim pokemon aiming for the magic 225. After special attack, the rest of the EVs went into HP for bulk.
Can I tweak Ludi's moveset any to make him more effective? Should I go with both Giga Drain and Grass Knot, perhaps? Would HP electric do me any good at the end of the game, or is it not worth it if I have Ice Beam and a STAB grass move? How many KOs would I miss with Surf over Hydro Pump? (Ludi is a lot more hurt by misses than Kingdra is.) I'd like to keep four moves on Ludi if possible.
Qwilfish @ Life Orb
Swift Swim
This is the standard OU SDQwilfish. Swords Dance on switches or against pokemon that can't hurt it too much and don't have Thunder Wave, then rampage. With an SD, Waterfall does at least 160% to Blissey in the rain (muahahahaha), and OHKOs basically everything that doesn't resist it. Qwilfish outspeeds Scarf positive Gengar/Latias by 12 points in the rain, and as such is the fastest pokemon on my team. Both Qwilfish and Ludicolo handle their late-game sweeper status marvellously, although they approach it from completely different directions: Qwilfish is really dangerous but a total glass cannon, with 271/187/146 defensive stats. Appalling. Ludicolo doesn't OHKO nearly as many things as Qwilfish, but it's a tank. With Giga Drain and no recoil from LO, it takes quite a bit to kill it, especially given its great typing.
So, that's my rain team. It's a bit unusual, but I've found it works pretty well for me. Are there any lineup changes I didn't anticipate that would help me out? Any other ideas?
The only other things I'm considering are putting Rain Dance on one of my sweepers, but Qwilfish is less useful if it can't explode at the end of its life, Kingdra already feels like it needs two more moveslots and if it got anything it would be RestChesto or Outrage, and Ludicolo needs all the coverage it can get since it doesn't run LO. Hmm... maybe I'll just be more careful with my three supporters.
Can I tweak Ludi's moveset any to make him more effective? Should I go with both Giga Drain and Grass Knot, perhaps? Would HP electric do me any good at the end of the game, or is it not worth it if I have Ice Beam and a STAB grass move? How many KOs would I miss with Surf over Hydro Pump? (Ludi is a lot more hurt by misses than Kingdra is.) I'd like to keep four moves on Ludi if possible.

Qwilfish @ Life Orb
Swift Swim
Adamant ( + Atk, - S. Atk)
252 Atk/4 Def/252 Spd
Swords Dance
Poison Jab
Waterfall
Explosion
252 Atk/4 Def/252 Spd
Swords Dance
Poison Jab
Waterfall
Explosion
This is the standard OU SDQwilfish. Swords Dance on switches or against pokemon that can't hurt it too much and don't have Thunder Wave, then rampage. With an SD, Waterfall does at least 160% to Blissey in the rain (muahahahaha), and OHKOs basically everything that doesn't resist it. Qwilfish outspeeds Scarf positive Gengar/Latias by 12 points in the rain, and as such is the fastest pokemon on my team. Both Qwilfish and Ludicolo handle their late-game sweeper status marvellously, although they approach it from completely different directions: Qwilfish is really dangerous but a total glass cannon, with 271/187/146 defensive stats. Appalling. Ludicolo doesn't OHKO nearly as many things as Qwilfish, but it's a tank. With Giga Drain and no recoil from LO, it takes quite a bit to kill it, especially given its great typing.
So, that's my rain team. It's a bit unusual, but I've found it works pretty well for me. Are there any lineup changes I didn't anticipate that would help me out? Any other ideas?
The only other things I'm considering are putting Rain Dance on one of my sweepers, but Qwilfish is less useful if it can't explode at the end of its life, Kingdra already feels like it needs two more moveslots and if it got anything it would be RestChesto or Outrage, and Ludicolo needs all the coverage it can get since it doesn't run LO. Hmm... maybe I'll just be more careful with my three supporters.