BIG NONSENSE (Grimmsnarl) @ Light Clay  
Ability: Prankster  
Tera Type: Ghost  
EVs: 248 HP / 152 Def / 108 SpD  
Impish Nature  
- Reflect  
- Light Screen  
- Taunt  
- Spirit Break  

BIG MAN (Blastoise-Mega) @ Blastoisinite  
Ability: Mega Launcher  
EVs: 8 HP / 112 Def / 200 SpA / 188 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Dark Pulse  
- Aura Sphere  
- Water Pulse  

BIG LION (Necrozma-Dusk-Mane) @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 40 HP / 248 Atk / 80 Def / 140 Spe  
Adamant Nature  
- Dragon Dance  
- Photon Geyser  
- Earthquake  
- Stone Edge  

BIG DOG (Zacian-Crowned) @ Rusted Sword  
Ability: Intrepid Sword  
Tera Type: Fighting  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Swords Dance  
- Behemoth Blade  
- Wild Charge  
- Close Combat  

BIG WHALE (Kyogre-Primal) @ Blue Orb  
Ability: Primordial Sea  
Tera Type: Water  
EVs: 60 HP / 44 Def / 216 SpA / 188 Spe  
Modest Nature  
IVs: 0 Atk  
- Calm Mind  
- Origin Pulse  
- Thunder  
- Ice Beam  

BIG LLAMA (Arceus) @ Silk Scarf  
Ability: Multitype  
EVs: 240 HP / 248 Atk / 20 Spe  
Adamant Nature  
- Swords Dance  
- Extreme Speed  
- Double-Edge  
- Shadow Claw