Genesect @ Leftovers  
Ability: Download  
Shiny: Yes  
EVs: 252 HP / 4 SpA / 252 Spe  
Hasty Nature  
- Simple Beam  
- Extreme Speed  
- Electroweb  
- Toxic  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 248 HP / 252 SpA / 8 SpD  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Dazzling Gleam  
- Focus Blast  
- Protect  

Rayquaza-Mega @ Life Orb  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpA / 252 Spe  
Hasty Nature  
- Dragon Dance  
- Dragon Ascent  
- Draco Meteor  
- V-create  

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

Jirachi @ Leftovers  
Ability: Serene Grace  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Iron Head  
- Follow Me  
- Wish  
- Protect  

Arceus-Water @ Splash Plate  
Ability: Multitype  
EVs: 252 HP / 252 SpA / 4 SpD  
Modest Nature  
IVs: 0 Atk  
- Judgment  
- Ice Beam  
- Recover  
- Calm Mind