Rayquaza-Mega @ Choice Scarf
Ability: Delta Stream
EVs: 252 Atk / 4 SpA / 252 Spe
Naive Nature
- Dragon Ascent
- V-create
- Surf
- Draco Meteor

Latias @ Leftovers
Ability: Levitate
EVs: 252 HP / 244 Def / 12 SpD
Calm Nature
IVs: 0 Atk
- Draco Meteor
- Toxic
- Defog
- Recover

Celesteela @ Leftovers
Ability: Beast Boost
EVs: 248 HP / 252 Def / 8 Spe
Impish Nature
- Leech Seed
- Substitute
- Flame Charge
- Protect

Xerneas @ Power Herb
Ability: Fairy Aura
EVs: 172 HP / 252 SpA / 84 Spe
Modest Nature
IVs: 0 Atk
- Geomancy
- Moonblast
- Hidden Power [Fire]
- Thunderbolt

Xerneas @ Choice Specs
Ability: Fairy Aura
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Moonblast
- Aromatherapy
- Focus Blast
- Thunder

Arceus-Poison @ Poisonium Z
Ability: Multitype
EVs: 252 HP / 4 Def / 156 SpD / 96 Spe
Jolly Nature
- Poison Jab
- Stealth Rock
- Will-O-Wisp
- Recover