I'm sort of new to competitive battling, but I figured I'd take a shot at it. This is one of the first teams I've tried to put together, so here goes:
Lucario @ Life Orb
Ability: Steadfast
Naughty: 252 Attack, 4 Special Attack, 252 Speed
-Close Combat
-Extremespeed
-Hidden Power (Ice)
-Swords Dance
Ninjask @ Leftovers
Ability: Speed Boost
Jolly: 176 HP, 252 Attack, 80 Speed
-Baton Pass
-Aerial Ace
-Swords Dance
-Substitute
Blaziken @ Choice Scarf
Ability: Blaze
Rash: 160 Attack, 138 Special Attack, 212 Speed
-Overheat
-Hidden Power (Ice)
-Stone Egde
-Sky Uppercut
Starmie @ Leftovers
Ability: Natural Cure
Timid: 160 HP, 132 Special Attack, 216 Speed
-Surf
-Thunderbolt
-Rapid Spin
-Recover
Electivire @ Life Orb
Ability: Motor Drive
Mild: 80 Attack, 252 Special Attack, 176 Speed
-Thunderbolt
-Hidden Power (Ice)
-Flamethrower
-Cross Chop
Steelix @ Leftovers
Ability: Sturdy
Impish: 252 HP, 120 Attack, 136 Special Defense
-Earthquake
-Gyro Ball
-Stealth Rock
-Explosion
Rate, fix, and what have you.
Lucario @ Life Orb
Ability: Steadfast
Naughty: 252 Attack, 4 Special Attack, 252 Speed
-Close Combat
-Extremespeed
-Hidden Power (Ice)
-Swords Dance
Ninjask @ Leftovers
Ability: Speed Boost
Jolly: 176 HP, 252 Attack, 80 Speed
-Baton Pass
-Aerial Ace
-Swords Dance
-Substitute
Blaziken @ Choice Scarf
Ability: Blaze
Rash: 160 Attack, 138 Special Attack, 212 Speed
-Overheat
-Hidden Power (Ice)
-Stone Egde
-Sky Uppercut
Starmie @ Leftovers
Ability: Natural Cure
Timid: 160 HP, 132 Special Attack, 216 Speed
-Surf
-Thunderbolt
-Rapid Spin
-Recover
Electivire @ Life Orb
Ability: Motor Drive
Mild: 80 Attack, 252 Special Attack, 176 Speed
-Thunderbolt
-Hidden Power (Ice)
-Flamethrower
-Cross Chop
Steelix @ Leftovers
Ability: Sturdy
Impish: 252 HP, 120 Attack, 136 Special Defense
-Earthquake
-Gyro Ball
-Stealth Rock
-Explosion
Rate, fix, and what have you.