Mewtwo-Mega-Y @ Choice Specs  
Ability: Protean  
Tera Type: Psychic  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Astral Barrage  
- Fleur Cannon  
- Steam Eruption  

Swampert-Mega @ Covert Cloak  
Ability: Ice Scales  
Shiny: Yes  
Tera Type: Water  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Precipice Blades  
- Flip Turn  
- Shore Up  
- Tidy Up  

Arceus-Poison @ Earth Plate  
Ability: Fur Coat  
Tera Type: Poison  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
- Torch Song  
- Judgment  
- Strength Sap  
- Mortal Spin  

Yveltal @ Assault Vest  
Ability: Regenerator  
Shiny: Yes  
Tera Type: Dark  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Knock Off  
- U-turn  
- Stone Axe  
- Sucker Punch  

Golisopod @ Rocky Helmet  
Ability: Magic Guard  
Tera Type: Bug  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- U-turn  
- Toxic  
- Spikes  
- Milk Drink  

Chansey (F) @ Eviolite  
Ability: Imposter  
Shiny: Yes  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Jungle Healing  
- Recover  
- Block  
- Glare