Sun uberdubs

Ho-Oh @ Charti Berry
Ability: Pressure
EVs: 252 HP / 252 Atk
Adamant Nature
- Sacred Fire
- Brave Bird
- Tailwind
- Protect

Groudon @ Life Orb
Ability: Drought
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature
- Earthquake
- Protect
- Stone Edge
- Thunder Punch

Xerneas @ Pixie Plate
Ability: Fairy Aura
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature
IVs: NaN Atk
- Moonblast
- Dazzling Gleam
- Thunderbolt
- Protect

Cresselia (F) @ Sitrus Berry
Ability: Levitate
EVs: 252 HP / 4 Def / 252 SDef
Calm Nature
IVs: 0 Atk
- Icy Wind
- Trick Room
- Helping Hand
- Sunny Day

Eor (Terrakion) @ Life Orb
Ability: Justified
EVs: 252 Atk / 4 SDef / 252 Spd
Jolly Nature
- Close Combat
- Stone Edge
- Quick Guard
- Protect

Houndoom @ Houndoominite
Ability: Flash Fire
EVs: 4 HP / 252 SAtk / 252 Spd
Timid Nature
IVs: 0 Atk
- Heat Wave
- Dark Pulse
- SolarBeam
- Protect