I agree with a few points listed in the previous answer. Having 5 set-up sweepers in the same team is NOT a good idea, and having Swords Dance on 4 of them is even worse. Here's what this team faces difficulty with:
- Lack of speed control (fixed by replacing Lucha with Pult)
- No good pivots which is basically essential with so much set-up (Pult + Rilla as pivots)
- No good wallbreakers i.e lack raw power (having Band Bisharp / Rilla / Specs Pult)
Mew should have Explosion over Flare Blitz. That was only a thing when Excadrill was common. Since now it has less usage, going Explosion is fine. Mew basically has to rack up as many Spikes along with Stealth Rocks as it can, use Taunt to prevent Defog and go boom to prevent Rapid Spin, etc.
Mew @ Red Card
Ability: Synchronize
EVs: 252 HP / 4 Atk / 252 Spe
Jolly Nature
- Taunt
- Stealth Rock
- Spikes
- Flare Blitz Explosion
Bisharp should have a Choice Band set instead of SD with Max Speed over HP. This team really needs a wallbreaker, and Bisharp can afford having a Band set to fulfill the role and you don't really need 4 Swords Dance users in a same team.
Bisharp @ Choice Band
Ability: Defiant
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Beat Up
- Knock Off
- Iron Head
- Sucker Punch
Rillaboom can have U-Turn and a Choice Band set so to pivot into Hawlucha better. If not, then Superpower > Drain Punch on it so that you can chip Corviknight and Skarmory as much as possible for Garchomp to break more easily.
Rillaboom @ Choice Band
Ability: Grassy Surge
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Wood Hammer
- U-turn
- Grassy Glide
- Knock Off
Or
Rillaboom @ Life Orb
Ability: Grassy Surge
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Swords Dance
- Grassy Glide
- Knock Off
- Drain Punch Superpower
Volcarona is pretty fine, but I suggest using Timid Nature over Modest Nature. Outspeeding Kyurem, Tapu Lele and Hydreigon without speed boosts is pretty vital.
> Volcarona @ Heavy-Duty Boots
Ability: Flame Body
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Timid Nature
IVs: 0 Atk
- Flamethrower
- Bug Buzz
- Quiver Dance
- Roost
Hawlucha < Dragapult
Imo you don't really need this with already CB Bisharp, Rilla and SD Chomp. Your team needs a special wallbreaker which fits here better, and can also provide speed control + momentum gain with U-Turn. Therefore, we're having Dragapult can fit all these roles.
Dragapult @ Choice Specs
Ability: Infiltrator
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Shadow Ball
- Draco Meteor
- U-turn
- Flamethrower
Garchomp seems solid in my eyes, no changes required.
Updated Team