Alakazam @ Life Orb  
Ability: Magic Guard  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Psyshock  
- Shadow Ball  
- Focus Blast  
- Nasty Plot  

Aggron-Mega @ Aggronite  
Ability: Sturdy  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
- Heavy Slam  
- Body Press  
- Toxic  
- Stealth Rock  

Altaria @ Heavy-Duty Boots  
Ability: Natural Cure  
Shiny: Yes  
Tera Type: Dragon  
EVs: 248 HP / 240 Def / 20 Spe  
Impish Nature  
- Earthquake  
- Will-O-Wisp  
- Roost  
- Defog  

Alomomola @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 8 HP / 252 Def / 248 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Toxic  
- Wish  
- Protect  

Amoonguss @ Eject Pack  
Ability: Regenerator  
EVs: 248 HP / 16 Def / 176 SpA / 68 SpD  
Modest Nature  
IVs: 0 Atk  
- Leaf Storm  
- Sludge Bomb  
- Hidden Power [Fire]  
- Spore  

Arcanine-Hisui @ Choice Band  
Ability: Rock Head  
Tera Type: Fire  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Flare Blitz  
- Head Smash  
- Close Combat  
- Extreme Speed