Diancie Sun Hyper Offense

Groudon @ Lum Berry
Ability: Drought
EVs: 80 HP / 252 Atk / 176 Spe
Adamant Nature
- Rock Polish
- Earthquake
- Stone Edge
- Swords Dance

Ho-Oh @ Choice Band
Ability: Regenerator
EVs: 240 HP / 252 Atk / 16 Spe
Adamant Nature
- Sacred Fire
- Earthquake
- Brave Bird
- Sleep Talk

Blaziken @ Blazikenite
Ability: Speed Boost
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Protect
- Swords Dance
- Flare Blitz
- High Jump Kick

Diancie @ Mental Herb
Ability: Clear Body
EVs: 252 HP / 252 Atk / 4 SpD
Brave Nature
IVs: 0 Spe
- Stealth Rock
- Trick Room
- Explosion
- Diamond Storm

Cloyster @ Focus Sash
Ability: Skill Link
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Shell Smash
- Icicle Spear
- Rapid Spin
- Toxic Spikes

Rayquaza @ Life Orb
Ability: Air Lock
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- V-create
- Extreme Speed
- Swords Dance
- Dragon Claw