Rayquaza @ Choice Specs  
Ability: Air Lock  
EVs: 252 SpA / 40 SpD / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Surf  
- Thunder  
- Defog  
- Draco Meteor  

Deoxys-Defense @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 4 Atk / 252 SpD  
Careful Nature  
- Spikes  
- Knock Off  
- Recover  
- Toxic  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Swords Dance  
- Rock Polish  
- Precipice Blades  
- Stone Edge  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Photon Geyser  
- Earthquake  
- Sunsteel Strike  

Blaziken-Mega @ Blazikenite  
Ability: Speed Boost  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Knock Off  
- Low Kick  
- Flare Blitz  
- Swords Dance  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 248 HP / 252 SpA / 8 SpD  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Hidden Power [Fire]  
- Moonblast  
- Psyshock