[RATE MY TEAM] VGC 2017 Showdown Team

[PhazontheGreat]

So I've been using this team for a while on Showdown and it's actually quite useful when pitted against most others. This VGC team is mostly offense-oriented, so there may not be so much support, but hopefully it works fine for you.

The Mons.

Kartana @ Life Orb  
Ability: Beast Boost  
Level: 50  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Sacred Sword  
- Leaf Blade  
- Smart Strike  
- Swords Dance


Marowak-Alola @ Thick Club  
Ability: Lightning Rod  
Level: 50  
EVs: 104 HP / 124 Atk / 140 SpD / 140 Spe  
Brave Nature  
- Shadow Bone  
- Flare Blitz  
- Bonemerang  
- Will-O-Wisp


Garchomp @ Assault Vest  
Ability: Sand Veil  
Level: 50  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Dragon Claw  
- Earthquake  
- Rock Slide  
- Poison Jab


Tapu Fini @ Leftovers  
Ability: Misty Surge  
Level: 50  
EVs: 244 HP / 148 Def / 68 SpA / 4 SpD / 44 Spe  
Calm Nature  
- Moonblast  
- Scald  
- Calm Mind  
- Protect


Tapu Koko @ Focus Sash  
Ability: Electric Surge  
Level: 50  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Dazzling Gleam  
- Nature's Madness  
- Thunderbolt  
- Taunt


Gigalith @ Rockium Z  
Ability: Sand Stream  
Level: 50  
EVs: 196 HP / 124 Atk / 188 SpD  
Brave Nature  
IVs: 0 Spe  
- Stone Edge  
- Heavy Slam  
- Wide Guard  
- Protect

If there's any sort of feedback you want to give me on this team, please feel free to say so.

[BoneheadMarowak]

You probably want to change Marowak's nature to Adamant, since Brave lowers its Speed. Other than that, I'm not that up to date when it comes to EV spreads for VGC

[Marcusube]

This team could be good or bad for all you know but what you haven't told us is how the team works. We can give a useful rating if you give us descriptions on what each Pokemon does and what they contribute to the team and what each EV spread does but we can't give you a useful rating if all you do is throw down six Pokemon