Rayquaza-Mega @ Life Orb  
Ability: Delta Stream  
Tera Type: Dragon  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Dragon Ascent  
- V-create  
- Extreme Speed  

Smeargle @ Focus Sash  
Ability: Technician  
Tera Type: Steel  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Sticky Web  
- Nuzzle  
- Perish Song  
- Mortal Spin  

Yveltal @ Life Orb  
Ability: Dark Aura  
Tera Type: Fire  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- Dark Pulse  
- Oblivion Wing  
- Taunt  
- Sucker Punch  

Eternatus @ Power Herb  
Ability: Pressure  
Tera Type: Dragon  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Meteor Beam  
- Dynamax Cannon  
- Sludge Bomb  
- Fire Blast  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
Tera Type: Ground  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Judgment  
- Power Gem  
- Taunt  

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