Rate my Gen 6 OU team.

Question

Tyrantrum (M) @ Zoom Lens
Ability: Rock Head
Shiny: Yes
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Earthquake
- Superpower
- Head Smash
- Dragon Claw

Bisharp (M)
Ability: Defiant
Shiny: Yes
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Knock Off
- Stone Edge
- Iron Head
- Brick Break

Scizor-Mega (M) @ Scizorite
Ability: Technician
Shiny: Yes
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Superpower
- Aerial Ace
- Bullet Punch
- Knock Off

Garchomp-Mega (M) @ Garchompite
Ability: Sand Force
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Rush
- Iron Tail
- Earthquake
- Stone Edge

Tyranitar-Mega (M) @ Tyranitarite
Ability: Sand Stream
Shiny: Yes
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Earthquake
- Stone Edge
- Crunch
- Brick Break

Zygarde @ Leftovers
Ability: Aura Break
EVs: 252 HP / 252 Atk / 4 SpD
Adamant Nature
- Land's Wrath
- Stone Edge
- Coil
- Outrage

Comments

Why do you have 3 megas? You can only mega evolve once per game.

I'm too tired to make a full answer rn but I might tomorrow.

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You should decide your Mega Pokemon first.

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Actually I don't think I'll be able to make a full answer but I still have some things to say:

-You have no special attacker. Swap Tyrantrum for one. Magnet Pull Magnezone could be a good option due to it's immunity to Tyranitar's sandstorm and its ability to forcibly remove an opposing Skarmory from existence.

-As I stated yesterday, you have 3 megas but you can only mega evolve once per game. I would keep Mega Scizor, seeing as Tyranitar and Garchomp are generally better than their mega evolved forms.

-Swap Scizor's Aerial Ace for Swords Dance, and do the same for Bisharp (except swap out Brick Break instead).

-Swap Tyranitar's Brick Break for Stealth Rock.

-Zygarde needs to go. I recommend Sand Rush Excadrill instead.