Anyone tried dual weather?? I tested a bit and it's actually not half bad. The idea is to start off using one weather style (I usually start using Rain) to make the opponent conserve all their checks for that weather style. For example, your opponent would pretty much keep their defensive Tangrowth alive to try ward off Kabutops. Then, after they waste their other less "important" Pokemon which wouldn't check Rain or Sun, bring in Sunny Day or your other weather condition and watch your opponents go "WTF??". Basically, it works if you make them sac all their checks. Obviously, you won't have room on your team to have dedicated weather inducers, but that's fine. Just put Rain Dance and Sunny Day on your sweepers.
I've made an example team, if anyone wants to have a try:
Armaldo (M) @ Leftovers
Ability: Battle Armor
EVs: 248 HP/8 Atk/252 Def
Impish nature (+Def, -SAtk)
- Rock Blast
- Stealth Rock
- Rapid Spin
- Knock Off
---
Kabutops (M) @ Life Orb
Ability: Swift Swim
EVs: 4 HP/252 Atk/252 Spd
Jolly nature (+Spd, -SAtk)
- Rain Dance
- Waterfall
- Stone Edge
- Aqua Jet
---
Qwilfish (M) @ Life Orb
Ability: Swift Swim
EVs: 252 Atk/4 Def/252 Spd
Adamant nature (+Atk, -SAtk)
- Rain Dance
- Waterfall
- Poison Jab
- Explosion
---
Moltres @ Life Orb
Ability: Pressure
EVs: 4 Def/252 Spd/252 SAtk
Timid nature (+Spd, -Atk)
- Sunny Day
- Fire Blast
- Solarbeam
- Roost
---
Tangrowth (M) @ Life Orb
Ability: Chlorophyll
EVs: 16 HP/252 Atk/240 Spd
Adamant nature (+Atk, -SAtk)
- Sunny Day
- Power Whip
- Earthquake
- Rock Slide
---
Clefable (M) @ Leftovers
Ability: Magic Guard
EVs: 252 HP/44 Def/212 SDef
Careful nature (+SDef, -SAtk)
- Wish
- Protect
- Aromatherapy
- Seismic Toss
Armaldo is there because I just fucking hate Froslass. Clefable is for support. The sweepers are self-explantory.