Gothitelle (F) @ Leftovers  
Ability: Shadow Tag  
EVs: 248 HP / 8 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Charm  
- Calm Mind  
- Psyshock  
- Rest  

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

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 180 HP / 252 SpA / 76 Spe  
Mild Nature  
- Stealth Rock  
- Precipice Blades  
- Overheat  
- Rock Tomb  

Magearna @ Leftovers  
Ability: Soul-Heart  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Fleur Cannon  
- Flash Cannon  
- Thunder Wave  
- Heart Swap  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 252 HP / 144 Def / 96 SpD / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Ice Beam  
- Defog  
- Recover  

Yveltal @ Choice Scarf  
Ability: Dark Aura  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
- Oblivion Wing  
- Dark Pulse  
- Foul Play  
- U-turn