Alright, everyone here is probably tired of reviewing Sandstorm teams or hates them with a passion, but whatever. I love Sandstorm and all the Pokemon that comes with it. Tyranitar has been a favorite of mine since the 2nd Gen, and Lucario is just cool. So here goes, my first Sandstorm team (and first competitive team in general):
TYRANITAR@Chesto Berry; Sand Stream
Nature: Careful EVs: 252HP/32Atk/220SpD
-Stealth Rock
-Rest
-Crunch
-Stone Edge
Purpose: This is the guy that leads off, always getting at least a minimum of sandstorm set up. If he didn't get Stealth Rock up for whatever reason (threatening lead, etc.) he has enough bulk to come back later and set them up. The EVs are set up so that he'll be a special wall with enough bulk to come back later in the game should the weather need correcting while still letting him hit decently hard.
LUCARIO@Life Orb; Steadfast
Nature: Adamant EVs: 4HP/252Atk/252Spe
-Swords Dance
-Close Combat
-Crunch
-Extreme Speed
Purpose: The late game sweeper. Once major threats have either been weakened or eliminated this guy comes in and sets up. Fairly straight forward.
SCIZOR@Life Orb; Technician
Nature: Adamant EVs: 176HP/100Atk/232SpD
-Bullet Punch
-U-Turn
-Roost
-Pursuit
Purpose: Trapper, scouter, damage racker. This guy helps Lucario out with his sweep, helping to whittle down the opponents team. Roost is there so this guy is useable later on and doesn't die from LO.
SKARMORY@Leftovers; Keene Eye
Nature: Impish EVs: 252HP/252Def/4Spe
-Whirlwind
-Roost
-Toxic
-Spikes
Purpose: Here to set up spikes and phaze the opponents team, building up the residual damage to allow Lucario to sweep. Roost is there for healing and toxic for crippling.
FORRETRESS@Leftovers; Sturdy
Nature: Relaxed EVs: 252HP/112Atk/144Def
-Explosion
-Spikes
-Rapid Spin
-Gyro Ball
Purpose: Rapid spinner, spikes support, and physical wall. Explosion to take down weakened opponents or threats (as a last resort).
FLYGON@Choice Scarf; Levetate
Nature: Adamant EVs: 4HP/252Atk/252Spe
-Earthquake
-Outrage
-Stone Edge
-U-Turn
Purpose: Scout and revenge killer mostly. He hasn't been too successful and hasn't had much use.
Threats: Water, Fire, and ground attacks in general are a fairly big issue with this team. This team also has an incredibly rough time dealing with other steel types, especially Bronzong and Skarmory. Magnezone can also trap and kill over half the team.

TYRANITAR@Chesto Berry; Sand Stream
Nature: Careful EVs: 252HP/32Atk/220SpD
-Stealth Rock
-Rest
-Crunch
-Stone Edge
Purpose: This is the guy that leads off, always getting at least a minimum of sandstorm set up. If he didn't get Stealth Rock up for whatever reason (threatening lead, etc.) he has enough bulk to come back later and set them up. The EVs are set up so that he'll be a special wall with enough bulk to come back later in the game should the weather need correcting while still letting him hit decently hard.

LUCARIO@Life Orb; Steadfast
Nature: Adamant EVs: 4HP/252Atk/252Spe
-Swords Dance
-Close Combat
-Crunch
-Extreme Speed
Purpose: The late game sweeper. Once major threats have either been weakened or eliminated this guy comes in and sets up. Fairly straight forward.

SCIZOR@Life Orb; Technician
Nature: Adamant EVs: 176HP/100Atk/232SpD
-Bullet Punch
-U-Turn
-Roost
-Pursuit
Purpose: Trapper, scouter, damage racker. This guy helps Lucario out with his sweep, helping to whittle down the opponents team. Roost is there so this guy is useable later on and doesn't die from LO.

SKARMORY@Leftovers; Keene Eye
Nature: Impish EVs: 252HP/252Def/4Spe
-Whirlwind
-Roost
-Toxic
-Spikes
Purpose: Here to set up spikes and phaze the opponents team, building up the residual damage to allow Lucario to sweep. Roost is there for healing and toxic for crippling.

FORRETRESS@Leftovers; Sturdy
Nature: Relaxed EVs: 252HP/112Atk/144Def
-Explosion
-Spikes
-Rapid Spin
-Gyro Ball
Purpose: Rapid spinner, spikes support, and physical wall. Explosion to take down weakened opponents or threats (as a last resort).

FLYGON@Choice Scarf; Levetate
Nature: Adamant EVs: 4HP/252Atk/252Spe
-Earthquake
-Outrage
-Stone Edge
-U-Turn
Purpose: Scout and revenge killer mostly. He hasn't been too successful and hasn't had much use.
Threats: Water, Fire, and ground attacks in general are a fairly big issue with this team. This team also has an incredibly rough time dealing with other steel types, especially Bronzong and Skarmory. Magnezone can also trap and kill over half the team.