Gyarados @ Flyinium Z  
Ability: Intimidate  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Waterfall  
- Bounce  
- Substitute  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Sludge Bomb  
- Recover  
- Haze  

Swampert-Mega @ Swampertite  
Ability: Swift Swim  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Rain Dance  
- Earthquake  
- Waterfall  

Empoleon @ Leftovers  
Ability: Torrent  
EVs: 252 HP / 144 Def / 112 SpD  
Impish Nature  
- Scald  
- Toxic  
- Protect  
- Knock Off  

Rotom-Wash @ Choice Scarf  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Hydro Pump  
- Defog  
- Thunder Wave  

Greninja @ Choice Specs  
Ability: Protean  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Hidden Power [Electric]  
- Dark Pulse  
- Hydro Pump  

=======================

Manaphy @ Waterium Z  
Ability: Hydration  
EVs: 252 HP / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Tail Glow  
- Rain Dance  
- Surf  
- Rest  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Sludge Bomb  
- Recover  
- Haze  

Swampert-Mega @ Swampertite  
Ability: Swift Swim  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Rain Dance  
- Earthquake  
- Waterfall  

Empoleon @ Leftovers  
Ability: Torrent  
EVs: 252 HP / 144 Def / 112 SpD  
Impish Nature  
- Scald  
- Toxic  
- Protect  
- Knock Off  

Rotom-Wash @ Choice Scarf  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Hydro Pump  
- Defog  
- Thunder Wave  

Greninja @ Choice Specs  
Ability: Protean  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Ice Beam  
- Hidden Power [Electric]  
- Dark Pulse  
- Hydro Pump