Swampert-Mega @ Swampertite  
Ability: Damp  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Waterfall  
- Ice Punch  
- Earthquake  
- Superpower  

Pelipper @ Damp Rock  
Ability: Drizzle  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
IVs: 22 Spe  
- Knock Off  
- U-turn  
- Scald  
- Roost  

Crawdaunt @ Choice Band  
Ability: Adaptability  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Knock Off  
- Crabhammer  
- Aqua Jet  
- Crunch  

Ferrothorn @ Figy Berry  
Ability: Iron Barbs  
EVs: 248 HP / 24 Def / 236 SpD  
Careful Nature  
- Spikes  
- Power Whip  
- Toxic  
- Stealth Rock  

Tornadus-Therian @ Rocky Helmet  
Ability: Regenerator  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
- Hurricane  
- Knock Off  
- Taunt  
- Defog  

Magearna @ Electrium Z  
Ability: Soul-Heart  
EVs: 248 HP / 28 Def / 224 SpA / 8 SpD  
Quiet Nature  
IVs: 0 Atk  
- Trick Room  
- Thunderbolt  
- Fleur Cannon  
- Focus Blast