Rayquaza-Mega @ Choice Scarf  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Dragon Ascent  
- V-create  
- Draco Meteor  
- Defog  

Gothitelle @ Fairium Z  
Ability: Shadow Tag  
EVs: 252 HP / 124 Def / 132 Spe  
Bold Nature  
IVs: 0 Atk  
- Charm  
- Cosmic Power  
- Rest  
- Taunt  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Play Rough  
- Behemoth Blade  
- Crunch  
- Wild Charge  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 208 HP / 252 SpD / 48 Spe  
Calm Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Recover  
- Sludge Bomb  
- Flamethrower  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 188 Def / 32 SpD / 36 Spe  
Impish Nature  
- Stealth Rock  
- Morning Sun  
- Sunsteel Strike  
- Thunder Wave  

Arceus-Dark @ Dread Plate  
Ability: Multitype  
EVs: 240 HP / 180 SpD / 88 Spe  
Calm Nature  
IVs: 0 Atk  
- Judgment  
- Recover  
- Whirlpool  
- Perish Song