Sheffield Regionals Team Concept

#1
Hello everyone, I am going to be participating in the Sheffield Regionals (I live in Paris) in not too long. This is a team I have designed for the competition.

Nihilego @ Life Orb
Ability: Beast Boost
Level: 50
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Power Gem
- Sludge Bomb
- Protect
- Hidden Power [Ice]



Tapu Bulu @ Miracle Seed
Ability: Grassy Surge
Level: 50
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Horn Leech
- Wood Hammer
- Superpower
- Protect



Togedemaru (M) @ Air Balloon
Ability: Lightning Rod
Level: 50
EVs: 252 HP / 4 Atk / 252 Spe
Jolly Nature
- Fake Out
- Spiky Shield
- Nuzzle
- Zing Zap



Ninetales-Alola (F) @ Focus Sash
Ability: Snow Warning
Level: 50
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Blizzard
- Freeze-Dry
- Protect
- Aurora Veil



Garchomp (F) @ Groundium Z
Ability: Rough Skin
Level: 50
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Earthquake
- Dragon Claw
- Poison Jab
- Protect



Arcanine (M) @ Sitrus Berry
Ability: Intimidate
Level: 50
EVs: 252 HP / 252 SpD / 4 Spe
Calm Nature
IVs: 0 Atk
- Roar
- Snarl
- Flamethrower
- Protect


Tell me what you think and if you have any suggestions for the team. Thanks everyone! :)
 
#2
You should really give us some descriptions of each Pokemon's role.

That said I am not seeing much synergy

Half your team (Bulu, Togedemaru, Ninetales) is weak to Arcanine which is everywhere at the moment.
Another half like Nihilego, Arcanine and Togedemaru can be steamrolled by Garchomp
Celesteela can also wall you for days since Bulu, Nihilego, Garchomp, Ninetales can do nothing to it
Also not too keen on the EV spreads with 252 across the board...

Can't really say much on this man, needs more info to better understand