Here's the team. Though, I don't think it's ready yet. But it's mostly all planned out. If you're not battling on showdown then you won't be able to use it:
Garchomp @ Rocky Helmet
Ability: Rough Skin
EVs: 250 HP / 252 Atk / 4 Def / 4 SpD
Careful Nature
- Earthquake
- Dragon Claw
- Iron Head
- Swords Dance
Shuckle @ Sitrus Berry
Ability: Sturdy
EVs: 250 HP / 8 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Stealth Rock
- Sticky Web
- Toxic
- Protect
Marshadow @ Marshadium Z
Ability: Technician
EVs: 100 HP / 100 Atk / 94 Def / 66 SpD / 150 Spe
Impish Nature
- Close Combat
- Spectral Thief
- Thunder Punch
- Poison Jab
Dialga @ Adamant Orb
Ability: Pressure
EVs: 100 HP / 96 Def / 116 SpA / 69 SpD / 129 Spe
Modest Nature
IVs: 0 Atk
- Roar of Time
- Flash Cannon
- Earth Power
- Aura Sphere
Pheromosa @ Focus Sash
Ability: Beast Boost
EVs: 252 Atk / 6 SpA / 252 Spe
Naughty Nature
- Double Kick
- Lunge
- Poison Jab
- Ice Beam
Eevee (F) @ Eevium Z
Ability: Adaptability
EVs: 252 HP / 4 Def / 2 SpD / 252 Spe
Impish Nature
- Last Resort
- Baton Pass
- Iron Tail
- Quick Attack
Here's the team in action!:
https://replay.pokemonshowdown.com/gen7anythinggoes-945898611 -
https://replay.pokemonshowdown.com/gen7anythinggoes-945906952 -
https://replay.pokemonshowdown.com/gen7anythinggoes-945909211 -
https://replay.pokemonshowdown.com/gen7anythinggoes-945910848