Thundurus (M) @ Icium Z  
Ability: Prankster  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Substitute  
- Thunderbolt  
- Defog  

Dragonite @ Flyinium Z  
Ability: Multiscale  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Outrage  
- Earthquake  
- Extreme Speed  

Kommo-o @ Kommonium Z  
Ability: Bulletproof  
EVs: 164 Atk / 92 SpA / 252 Spe  
Naive Nature  
- Clanging Scales  
- Close Combat  
- Earthquake  
- Poison Jab  

Magearna @ Groundium Z  
Ability: Soul-Heart  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Heart Swap  
- Heal Bell  
- Fleur Cannon  
- Flash Cannon  

Malamar @ Focus Sash  
Ability: Infiltrator  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
IVs: 0 Atk  
- Topsy-Turvy  
- Destiny Bond  
- Taunt  
- Trick Room  

Stakataka @ Fairium Z  
Ability: Beast Boost  
EVs: 252 HP / 252 Atk / 4 SpD  
Lonely Nature  
IVs: 15 Def / 0 Spe  
- Trick Room  
- Gyro Ball  
- Earthquake  
- Stone Edge