Swampert-Mega @ Swampertite  
Ability: Swift Swim  
Level: 50  
EVs: 108 HP / 252 Atk / 4 Def / 28 SpD / 116 Spe  
Adamant Nature  
- Waterfall  
- Earthquake  
- Ice Punch  
- Protect  

Pelipper @ Focus Sash  
Ability: Drizzle  
Level: 50  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Brine  
- Hurricane  
- Tailwind  
- Protect  

Ludicolo @ Waterium Z  
Ability: Swift Swim  
Level: 50  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
- Hydro Pump  
- Energy Ball  
- Fake Out  
- Protect  

Tapu Koko @ Choice Specs  
Ability: Electric Surge  
Level: 50  
EVs: 28 HP / 4 Def / 212 SpA / 12 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Electro Ball  
- Discharge  
- Dazzling Gleam  
- Volt Switch  

Gardevoir-Mega (F) @ Gardevoirite  
Ability: Telepathy  
Level: 50  
EVs: 252 HP / 140 Def / 52 SpA / 60 SpD  
Quiet Nature  
IVs: 0 Atk / 22 Spe  
- Hyper Voice  
- Psychic  
- Trick Room  
- Protect  

Stakataka @ Fightinium Z  
Ability: Beast Boost  
Level: 50  
EVs: 244 HP / 252 Atk / 12 SpD  
Brave Nature  
IVs: 0 Spe  
- Gyro Ball  
- Superpower  
- Ally Switch  
- Protect