Team Building Advice for SS OU

[Rowym]

I'm relatively new to the competitive scene of Pokemon, but I have been battling in SS OU alot lately, and I'm doing well, but I feel like I could do better, so I want some advice on Team Building. The team I'm currently using is:

Cinderace (M) @ Heavy-Duty Boots
Ability: Libero
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Bulk Up
- Pyro Ball
- Sucker Punch
- Zen Headbutt

Dragapult (M) @ Life Orb
Ability: Infiltrator
EVs: 252 Atk / 4 SpA / 252 Spe
Lonely Nature
- Dragon Dance
- Dragon Darts
- Steel Wing
- Fire Blast

Bisharp (M) @ Black Glasses
Ability: Defiant
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Swords Dance
- Knock Off
- Iron Head
- Sucker Punch

Excadrill (M) @ Focus Sash
Ability: Mold Breaker
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Stealth Rock
- Earthquake
- Rapid Spin
- Iron Head

Primarina (F) @ Leftovers
Ability: Torrent
EVs: 248 HP / 80 Def / 44 SpD / 136 Spe
Calm Nature
- Substitute
- Calm Mind
- Scald
- Moonblast

Ferrothorn (M) @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Spikes
- Body Press
- Knock Off
- Leech Seed

 

[Twilight]

I'm locking your RMT for the time being as the forum rules require that you provide at least 3 lines of descriptions for each Pokemon to explain their roles. Please read the rules carefully and take a look at Team Showcase to see the level of detail we require. PM me with updated descriptions and I'll be happy to unlock this.