Porygon2 @ Eviolite  
Ability: Download  
Level: 50  
EVs: 244 HP / 196 SpA / 68 SpD  
Modest Nature  
IVs: 0 Atk  
- Tri Attack  
- Ice Beam  
- Shadow Ball  
- Trick Room 

Mawile-Mega (F) @ Mawilite  
Ability: Huge Power  
Level: 50  
EVs: 252 HP / 252 Atk / 4 Def  
Adamant Nature  
- Play Rough  
- Knock Off  
- Thunder Punch  
- Sucker Punch 

Chandelure (F) @ Ghostium Z  
Ability: Flash Fire  
Level: 50  
EVs: 204 HP / 124 Def / 172 SpA / 4 SpD / 4 Spe  
Modest Nature  
IVs: 0 Atk  
- Flamethrower  
- Shadow Ball  
- Curse  
- Trick Room 

Landorus-Therian (M) @ Flyinium Z  
Ability: Intimidate  
Level: 50  
EVs: 4 HP / 204 Atk / 4 Def / 44 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- Fly  
- Smack Down  
- Swords Dance 

Tapu Koko @ Choice Specs  
Ability: Electric Surge  
Level: 50  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Volt Switch  
- Dazzling Gleam  
- Hidden Power [Ice] 

Gyarados-Mega (M) @ Gyaradosite  
Ability: Mold Breaker  
Level: 50  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Waterfall  
- Crunch  
- Taunt  
- Dragon Dance