Zygarde @ Groundium Z  
Ability: Power Construct  
Tera Type: Dragon  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Coil  
- Thousand Arrows  
- Extreme Speed  
- Substitute  

Magnezone @ Electrium Z  
Ability: Sturdy  
Tera Type: Electric  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Zap Cannon  
- Electroweb  
- Metal Sound  
- Protect  

Tapu Fini @ Tapunium Z  
Ability: Misty Surge  
Tera Type: Water  
EVs: 252 HP / 128 Def / 8 SpA / 64 SpD / 56 Spe  
Bold Nature  
IVs: 0 Atk  
- Nature's Madness  
- Taunt  
- Brine  
- Icy Wind