Deoxys-Attack @ Psychium Z  
Ability: Pressure  
EVs: 4 Atk / 252 SpA / 252 Spe  
Rash Nature  
- Psycho Boost  
- Superpower  
- Substitute  
- Detect  

Aegislash @ Leftovers  
Ability: Stance Change  
EVs: 188 HP / 12 Def / 228 SpA / 80 Spe  
Modest Nature  
IVs: 0 Atk  
- Shadow Ball  
- Flash Cannon  
- Wide Guard  
- King's Shield  

Volcanion @ Leftovers  
Ability: Water Absorb  
EVs: 252 HP / 4 Def / 28 SpA / 136 SpD / 88 Spe  
Modest Nature  
IVs: 0 Atk  
- Steam Eruption  
- Heat Wave  
- Protect  
- Substitute  

Landorus-Therian @ Choice Scarf  
Ability: Intimidate  
EVs: 204 Atk / 52 SpD / 252 Spe  
Jolly Nature  
- Earthquake  
- U-turn  
- Rock Slide  
- Superpower  

Shaymin-Sky @ Focus Sash  
Ability: Serene Grace  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Seed Flare  
- Air Slash  
- Tailwind  
- Protect  

Diancie-Mega @ Diancite  
Ability: Magic Bounce  
Shiny: Yes  
EVs: 28 HP / 164 Atk / 44 SpA / 20 SpD / 252 Spe  
Hasty Nature  
- Protect  
- Diamond Storm  
- Moonblast  
- Earth Power