Water mono

Established (Rotom-W) @ Choice Scarf
Trait: Levitate
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature (+Spd, -Atk)
- Hydro Pump
- Trick
- Volt Switch
- Hidden Power [Fire]

Bazz (Azumarill) (M) @ Choice Band
Trait: Huge Power
EVs: 252 HP / 252 Atk / 4 Spd
Adamant Nature (+Atk, -SAtk)
- Waterfall
- Aqua Jet
- Superpower
- Ice Punch

Moody (Keldeo) @ Leftovers
Trait: Justified
EVs: 4 Atk / 252 SAtk / 252 Spd
Timid Nature (+Spd, -Atk)
- Calm Mind
- Surf
- Secret Sword
- Hidden Power [Electric]

Meh (Starmie) @ Leftovers
Trait: Natural Cure
EVs: 252 HP / 252 Def / 4 SDef
Calm Nature (+SDef, -Atk)
- Psychic
- Surf
- Rapid Spin
- Recover

Skill>Luck (Gyarados) (M) @ Leftovers
Trait: Intimidate
EVs: 252 HP / 252 Def / 4 SDef
Impish Nature (+Def, -SAtk)
- Rest
- Roar
- Sleep Talk
- Waterfall

LightHero (Gastrodon) (M) @ Leftovers
Trait: Storm Drain
EVs: 252 HP / 4 Def / 252 SDef
Calm Nature (+SDef, -Atk)
- Recover
- Toxic
- Ice Beam
- Earth Power