The Ou team

Crawdaunt @ Life Orb
Ability: Adaptability
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Swords Dance
- Aqua Jet
- Crabhammer
- Knock Off

Venusaur-Mega @ Venusaurite
Ability: Thick Fat
EVs: 252 HP / 240 Def / 16 Spe
Bold Nature
- Giga Drain
- Sludge Bomb
- Synthesis
- Hidden Power [Fire]

Ferrothorn @ Rocky Helmet
Ability: Iron Barbs
EVs: 252 HP / 4 Atk / 252 Def
Relaxed Nature
IVs: 0 Spe
- Leech Seed
- Stealth Rock
- Knock Off
- Gyro Ball

Landorus-Therian (M) @ Choice Scarf
Ability: Intimidate
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Earthquake
- Stone Edge
- U-turn
- Knock Off

Heatran @ Air Balloon
Ability: Flash Fire
EVs: 252 HP / 252 SpA / 4 SpD
Modest Nature
- Earth Power
- Lava Plume
- Hidden Power [Ice]
- Will-O-Wisp

Clefable @ Life Orb
Ability: Magic Guard
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
- Calm Mind
- Moonblast
- Ice Beam
- Soft-Boiled