Miraidon @ Covert Cloak  
Ability: Fur Coat  
Tera Type: Electric  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunder Cage  
- Torch Song  
- Mortal Spin  
- Strength Sap  

Arceus-Water @ Covert Cloak  
Ability: Fur Coat  
Tera Type: Water  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Scald  
- Lava Plume  
- Calm Mind  
- Shore Up  

Palkia-Origin @ Lustrous Globe  
Ability: Speed Boost  
Tera Type: Water  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Water Spout  
- Dragon Energy  
- Strength Sap  
- Nasty Plot  

Altaria-Mega @ Covert Cloak  
Ability: Ice Scales  
Tera Type: Dragon  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Moonblast  
- Will-O-Wisp  
- Shore Up  
- Take Heart  

Ho-Oh @ Life Orb  
Ability: Magic Guard  
Tera Type: Fire  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Brave Bird  
- Flare Blitz  
- Tidy Up  
- Strength Sap  

Steelix-Mega @ Assault Vest  
Ability: Regenerator  
Tera Type: Steel  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Flip Turn  
- Mortal Spin  
- Stone Axe  
- Gigaton Hammer