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

Araquanid @ Choice Band  
Ability: Water Bubble  
EVs: 248 HP / 252 Atk / 4 SpD / 4 Spe  
Adamant Nature  
- Sticky Web  
- Liquidation  
- Leech Life  
- Rest  

Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Moonblast  
- Earth Power  
- Hidden Power [Fire]  

Tornadus-Therian @ Rocky Helmet  
Ability: Regenerator  
EVs: 208 HP / 92 SpA / 208 Spe  
Timid Nature  
- Taunt  
- Heat Wave  
- Knock Off  
- Hurricane  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
- Volt Switch  
- Fleur Cannon  
- Hidden Power [Fire]  
- Iron Head  

Landorus-Therian @ Choice Scarf  
Ability: Intimidate  
EVs: 208 HP / 104 Def / 196 Spe  
Jolly Nature  
- Defog  
- U-turn  
- Earthquake  
- Hidden Power [Ice]