Yveltal @ Leftovers  
Ability: Dark Aura  
EVs: 252 HP / 72 SpD / 184 Spe  
Jolly Nature  
- Foul Play  
- Toxic  
- Taunt  
- Roost  

Marshadow @ Marshadium Z  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Bulk Up  
- Spectral Thief  
- Close Combat  
- Shadow Sneak  

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

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
- Heart Swap  
- Fleur Cannon  
- Volt Switch  
- Pain Split  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 252 HP / 160 Def / 96 Spe  
Timid Nature  
- Judgment  
- Recover  
- Ice Beam  
- Defog  

Groudon-Primal @ Red Orb  
Ability: Drought  
EVs: 252 HP / 56 Def / 200 SpD  
Relaxed Nature  
- Stealth Rock  
- Precipice Blades  
- Overheat  
- Toxic