First OU team

Dragonite @ Choice Band
Ability: Multiscale
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Extreme Speed
- Dragon Rush
- Stone Edge
- Fire Punch

Jirachi @ Assault Vest
Ability: Serene Grace
Shiny: Yes
EVs: 128 HP / 252 Atk / 128 Spe
Adamant Nature
- Iron Head
- Zen Headbutt
- U-turn
- Meteor Mash

Gengar @ Choice Scarf
Ability: Levitate
Shiny: Yes
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Dark Pulse
- Sludge Wave
- Shadow Ball
- Toxic

Conkeldurr @ Leftovers
Ability: Sheer Force
Shiny: Yes
EVs: 128 HP / 252 Atk / 128 SpD
- Low Sweep
- Fire Punch
- Mach Punch
- Stone Edge

Garchomp @ Rocky Helmet
Ability: Rough Skin
Shiny: Yes
EVs: 252 HP / 4 SpD / 252 Spe
Careful Nature
- Stealth Rock
- Dragon Tail
- Toxic
- Fire Fang

Metagross-Mega @ Metagrossite
Ability: Tough Claws
Shiny: Yes
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Bullet Punch
- Meteor Mash
- Zen Headbutt
- Brick Break