Tapu Fini @ Eject Button  
Ability: Misty Surge  
EVs: 252 HP / 192 Def / 20 SpD / 44 Spe  
Bold Nature  
IVs: 0 Atk  
- Nature's Madness  
- Scald  
- Moonblast  
- Defog  

Dugtrio @ Focus Sash  
Ability: Arena Trap  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Earthquake  
- Toxic  
- Final Gambit  
- Memento  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 120 Atk / 28 Def / 108 SpD  
Careful Nature  
- Stealth Rock  
- Earthquake  
- Fire Punch  
- Roar  

Zekrom @ Lum Berry  
Ability: Teravolt  
EVs: 252 HP / 28 Atk / 228 Spe  
Jolly Nature  
- Roost  
- Dragon Claw  
- Bolt Strike  
- Hone Claws  

Necrozma-Dusk-Mane @ Electrium Z  
Ability: Prism Armor  
EVs: 128 HP / 128 Atk / 252 Spe  
Jolly Nature  
- Magnet Rise  
- Swords Dance  
- Sunsteel Strike  
- Photon Geyser  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
EVs: 252 HP / 136 Def / 56 SpA / 64 SpD  
Bold Nature  
IVs: 0 Atk  
- Toxic  
- Thunder  
- Ice Beam  
- Origin Pulse