Suggestions for rest of team: OU Doubles

Question

Tyranitar @Air Balloon
Ability: Sand Stream
EVs: 248 HP/ 80 Def/ 180 SpD
Impish Nature
- Stealth Rock
- Rock Slide
- Pursuit
- Fire Fang

Excadrill @Life Orb
Ability: Sand Rush
EVs: 4 HP/ 252 Atk/ 252 Spe
Adamant Nature
- Earthquake
- Iron Head
- Rock Slide
- Swords Dance

Excadrill works as a sweeper, with double speed in sandstorm. Tyranitar is support, with Fire- and Thunder-Fang to cover Excadrill's weaknesses to Grass and Flying. Pursuit is to get a possible KO if the opponent leads with a Ghost or Psychic. Air Balloon protects Tyranitar from Earthquake.

I'm hoping for suggestions on what to add as subs/reserves, as I will be leading with the above Pokemon. Thanks in advance!

Comments

While what you have is pretty good, I feel obliged to suggest putting something to the effect of "suggestions for the rest of my team" in your title.

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On Tyrannitar, why is thunder fang better than rock slide, and why is relaxed better than impish?

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you can run a jolly but i likje adamant exadrill better, just sayin'