This is an OU team I threw together in a few minutes. Might as well get some advice on it!
Hawlucha @ Power Herb
Ability: Unburden
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Sky Attack
- Acrobatics
- Swords Dance
- Rock Slide
Talonflame @ Choice Band
Ability: Gale Wings
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Brave Bird
- Flare Blitz
- U-turn
- Facade
Cloyster @ White Herb
Ability: Skill Link
EVs: 252 Atk / 252 Def / 4 SpD
Impish Nature
- Shell Smash
- Ice Shard
- Icicle Spear
- Razor Shell
Venusaur @ Venusaurite
Ability: Overgrow
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
- Leech Seed
- Giga Drain
- Synthesis
- Sludge Bomb
Skarmory @ Leftovers
Ability: Sturdy
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
- Defog
- Stealth Rock
- Spikes
- Whirlwind
Manaphy @ Chesto Berry
Ability: Hydration
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Rain Dance
- Surf
- Tail Glow
- Ice Beam
If you have any questions please ask!