Xerneas @ Power Herb  
Ability: Fairy Aura  
Tera Type: Water  
EVs: 252 HP / 84 SpA / 172 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Dazzling Gleam  
- Geomancy  
- Protect  

Indeedee-F @ Psychic Seed  
Ability: Psychic Surge  
Tera Type: Ground  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Follow Me  
- Heal Pulse  
- Expanding Force  
- Trick Room  

Lunala @ Power Herb  
Ability: Shadow Shield  
Tera Type: Dark  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moongeist Beam  
- Meteor Beam  
- Tailwind  
- Wide Guard  

Kyogre-Primal @ Blue Orb  
Ability: Primordial Sea  
Tera Type: Water  
EVs: 252 HP / 100 Def / 56 SpA / 100 Spe  
Modest Nature  
IVs: 0 Atk  
- Water Spout  
- Origin Pulse  
- Ice Beam  
- Protect  

Rayquaza-Mega @ Focus Sash  
Ability: Air Lock  
Tera Type: Dragon  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Dragon Ascent  
- Extreme Speed  
- Overheat  
- Protect  

Miraidon @ Choice Scarf  
Ability: Hadron Engine  
Tera Type: Water  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
- Volt Switch  
- Draco Meteor  
- Electro Drift  
- Tera Blast