Diancie-Mega @ Choice Specs  
Ability: Pixilate  
Tera Type: Rock  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Extreme Speed  
- Boomburst  
- Stone Axe  
- Volt Switch  

Garchomp-Mega @ Choice Band  
Ability: Sword of Ruin  
Tera Type: Dragon  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Headlong Rush  
- Glaive Rush  
- Volt Tackle  
- V-create  

Steelix-Mega @ Assault Vest  
Ability: Regenerator  
Tera Type: Steel  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- U-turn  
- Mortal Spin  
- Knock Off  
- Stone Axe  

Miraidon @ Covert Cloak  
Ability: Fur Coat  
Tera Type: Electric  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Thunder Cage  
- Torch Song  
- Mortal Spin  
- Strength Sap  

Arceus-Fairy @ Covert Cloak  
Ability: Fur Coat  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Take Heart  
- Moonblast  
- Strength Sap  
- Lava Plume  

Chansey (F) @ Eviolite  
Ability: Imposter  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Haze  
- Block  
- Wish  
- Heal Bell