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

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 80 Atk / 252 SpA / 176 Spe  
Mild Nature  
- Rock Polish  
- Fire Blast  
- Hidden Power [Ice]  
- Precipice Blades  

Mewtwo-Mega-Y @ Mewtwonite Y  
Ability: Insomnia  
EVs: 64 HP / 252 SpA / 192 Spe  
Timid Nature  
IVs: 0 Atk  
- Calm Mind  
- Recover  
- Psystrike  
- Fire Blast  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 168 Def / 88 Spe  
Bold Nature  
IVs: 0 Atk  
- Ice Beam  
- Recover  
- Will-O-Wisp  
- Toxic  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Stealth Rock  
- Morning Sun  
- Sunsteel Strike  
- Toxic  

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