BH

Groudon-Primal @ Choice Band
Ability: Sand Rush
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Thousand Arrows
- Sacred Fire
- Diamond Storm
- U-turn

Dialga @ Smooth Rock
Ability: Sand Stream
EVs: 252 HP / 252 Def / 4 SpA
Bold Nature
IVs: 0 Atk
- Baneful Bunker
- Defog
- Stealth Rock
- Haze

Metagross-Mega @ Leftovers
Ability: Prankster
Shiny: Yes
EVs: 252 HP / 252 Def / 4 SpD
Bold Nature
IVs: 0 Atk
- Thunder Wave
- Swagger
- Recover
- Foul Play

Diancie-Mega @ Focus Sash
Ability: Prankster
Shiny: Yes
EVs: 248 HP / 8 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Topsy-Turvy
- Heal Bell
- Recover
- Thunder Wave

Garchomp-Mega @ Choice Band
Ability: Sand Rush
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Thousand Arrows
- Sacred Fire
- Diamond Storm
- Dragon Claw

Metagross-Mega @ Choice Scarf
Ability: Serene Grace
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Iron Head
- Heart Stamp
- Icicle Crash
- Sacred Fire