Blastoise and Meganium Mega duo

Meganium-Mega @ Meganiumite
Ability: Overgrow
Level: 50
EVs: 32 SpA / 2 SpD / 32 Spe
Modest Nature
- Solar Beam
- Weather Ball
- Dazzling Gleam
- Protect

Talonflame @ Focus Sash
Ability: Gale Wings
Level: 50
EVs: 32 Atk / 2 SpD / 32 Spe
Jolly Nature
- Tailwind
- Brave Bird
- Quick Guard
- Flare Blitz

Garchomp @ Lum Berry
Ability: Rough Skin
Level: 50
EVs: 32 Atk / 2 SpD / 32 Spe
Jolly Nature
- Rock Slide
- Stomping Tantrum
- Dragon Claw
- Protect

Blastoise-Mega @ Blastoisinite
Ability: Rain Dish
Level: 50
EVs: 2 HP / 32 SpA / 32 Spe
Modest Nature
- Water Spout
- Protect
- Fake Out
- Shell Smash

Vivillon @ Choice Scarf
Ability: Compound Eyes
Level: 50
EVs: 24 Def / 5 SpA / 5 SpD / 32 Spe
Timid Nature
- Sleep Powder
- Rage Powder
- Hurricane
- Pollen Puff

Politoed @ Leftovers
Ability: Drizzle
Level: 50
EVs: 25 HP / 4 Def / 2 SpA / 27 SpD / 8 Spe
Calm Nature
- Helping Hand
- Muddy Water
- Encore
- Protect