Gengar-Mega @ Gengarite  
Ability: Shadow Tag  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shadow Ball  
- Sludge Wave  
- Focus Blast  
- Substitute  

Zygarde-Complete @ Leftovers  
Ability: Power Construct  
EVs: 232 Atk / 44 SpD / 232 Spe  
Adamant Nature  
- Thousand Arrows  
- Dragon Tail  
- Substitute  
- Dragon Dance  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Precipice Blades  
- Dragon Tail  
- Toxic  
- Stealth Rock  

Yveltal @ Leftovers  
Ability: Dark Aura  
EVs: 248 HP / 180 Def / 80 Spe  
Bold Nature  
IVs: 0 Atk  
- Foul Play  
- Toxic  
- Roost  
- Taunt  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 248 HP / 244 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Ice Beam  
- Toxic  
- Recover  
- Defog  

Arceus-Poison @ Poisonium Z  
Ability: Multitype  
EVs: 248 HP / 8 Atk / 8 Def / 148 SpD / 96 Spe  
Jolly Nature  
- Poison Jab  
- Will-O-Wisp  
- Recover  
- Perish Song