Well, a few weeks ago, I got really bored and stumbled back to pokemon for a bit, so I thought I would try my hand at the competetive scene, something I have never done in any pokemon game before. So, with the help of Smogon and Serebii, I came up with a team (and I hope you guys don't mind if its not too original, I'm just testing the waters):
Ninjask @ Focus Band
Nature: Jolly (+Spe, -SpA)
Ability: Speed Boost
Moveset:
>Substitute
>Baton Pass
>Swords Dance
>Aerial Ace
EVs: 176 HP / 252 Atk / 80 Spe
He's in here to scout out their starter and Baton Pass the Speed Boosts and Swords Dances to Tyranitar. Aerial Ace works if I want to switch him in to take out Heracross (I know its not much of a counter, but its something).
Tyranitar @ Life Orb
Nature: Adamant (+Atk, -SpA)
Ability: Sand Stream
Moveset:
>Dragon Dance
>Earthquake
>Stone Edge
>Taunt
EVs: 4 HP / 252 Atk / 252 Spe
My main physical sweeper, Dragon Dance makes it an easier job, Stone Edge for STAB and Taunt to keep him from being statused. Pretty much the basic set. He also sets up sandstorm.
Lucario @ Choice Specs
Nature: Modest (+SpA, -Atk)
Ability: Inner Focus
Moveset:
>Aura Shpere
>Vacuum Wave
>Dragon Pulse
>Shadow Ball / Dark Pulse (I am really not sure which, any opinions?)
EVs: 4 Def / 252 SpA / 252 Spe
For some reason I really like the appeal of Lucario as a special sweeper, so I'm going to try it out. I know that Steadfast is just a tad better than Inner Focus, but it took me forever just to get a Modest one, so thats how its gonna stay. I'm in between on Shadow Ball and Dark Pulse, not sure if I need flinching or better coverage of Heracross.
Hippowdon @ Leftovers
Nature: Impish (+Def, -SpA)
Ability: Sand Stream
Moveset:
>Earthquake
>Ice Fang
>Roar
>Slack Off
EVs: 252 HP / 4 Atk / 252 Spe
My Physical Wall, really appeals to me, too. As far as I know it takes hits like a pro, and can also sets up sandstorm for me.
Milotic @ Leftovers
Nature: Modest (+SpA, -Atk)
Ability: Marvel Scale
Moveset:
>Surf
>Ice Beam
>Rest
>Sleep Talk
EVs: 252 HP / 232 Def / 24 SpA
My Special Wall. I like Rest + Sleep Talk better than Hypnosis + Recover for her because of Marvel Scale, and that it absorbs sleep for sleep clause. I like convenient things like that, and it seems to be a better wall that way.
Foretress @ Shed Shell
Nature: Relaxed
Ability: Sturdy
Moveset:
>Explosion (was always on there, just typo)
>Rapid Spin
>Gyro Ball
>Spikes / Stealth Rock (also not sure about this)
EVs: 252 HP / 162 Atk / 96 Def
My Spiker (or Stealth Rocker). Pretty standard, spikes, Gyro Balls if he needs to, and explodes when he is in trouble. I'm not sure what to go with, they seem pretty much the same (except Stealth Rock kills flying better). Also is it better to stack spikes the three times or just once?
Also, I plan on raising a Garchomp as another Physical Sweeper, and if anything doesn't work out on this team I could swap him in.
Garchomp @ Life Orb
Nature: Jolly
Ability: Sand Veil
Moveset:
>Swords Dance
>Earthquake
>Dargon Claw
>Fire Fang
EVs: 4 HP / 252 Atk / 252 Spe
Fits right into the sandstorm theme with Sand Veil, and so I have heard is a fearsome sweeper. I considered using Brightpowder for him, but I would rather be notorious for other things besides using a cheap item.
None of these are set in stone, and save Ninjask (who is lvl 26) and Foretress (still trying to breed a Relaxed one) they are level one or two for now, so changes can be made easily. And... I don't mind at all if you tear me apart, it can only help me learn!
Thanks for reading!

Ninjask @ Focus Band
Nature: Jolly (+Spe, -SpA)
Ability: Speed Boost
Moveset:
>Substitute
>Baton Pass
>Swords Dance
>Aerial Ace
EVs: 176 HP / 252 Atk / 80 Spe
He's in here to scout out their starter and Baton Pass the Speed Boosts and Swords Dances to Tyranitar. Aerial Ace works if I want to switch him in to take out Heracross (I know its not much of a counter, but its something).

Tyranitar @ Life Orb
Nature: Adamant (+Atk, -SpA)
Ability: Sand Stream
Moveset:
>Dragon Dance
>Earthquake
>Stone Edge
>Taunt
EVs: 4 HP / 252 Atk / 252 Spe
My main physical sweeper, Dragon Dance makes it an easier job, Stone Edge for STAB and Taunt to keep him from being statused. Pretty much the basic set. He also sets up sandstorm.

Lucario @ Choice Specs
Nature: Modest (+SpA, -Atk)
Ability: Inner Focus
Moveset:
>Aura Shpere
>Vacuum Wave
>Dragon Pulse
>Shadow Ball / Dark Pulse (I am really not sure which, any opinions?)
EVs: 4 Def / 252 SpA / 252 Spe
For some reason I really like the appeal of Lucario as a special sweeper, so I'm going to try it out. I know that Steadfast is just a tad better than Inner Focus, but it took me forever just to get a Modest one, so thats how its gonna stay. I'm in between on Shadow Ball and Dark Pulse, not sure if I need flinching or better coverage of Heracross.

Hippowdon @ Leftovers
Nature: Impish (+Def, -SpA)
Ability: Sand Stream
Moveset:
>Earthquake
>Ice Fang
>Roar
>Slack Off
EVs: 252 HP / 4 Atk / 252 Spe
My Physical Wall, really appeals to me, too. As far as I know it takes hits like a pro, and can also sets up sandstorm for me.

Milotic @ Leftovers
Nature: Modest (+SpA, -Atk)
Ability: Marvel Scale
Moveset:
>Surf
>Ice Beam
>Rest
>Sleep Talk
EVs: 252 HP / 232 Def / 24 SpA
My Special Wall. I like Rest + Sleep Talk better than Hypnosis + Recover for her because of Marvel Scale, and that it absorbs sleep for sleep clause. I like convenient things like that, and it seems to be a better wall that way.

Foretress @ Shed Shell
Nature: Relaxed
Ability: Sturdy
Moveset:
>Explosion (was always on there, just typo)
>Rapid Spin
>Gyro Ball
>Spikes / Stealth Rock (also not sure about this)
EVs: 252 HP / 162 Atk / 96 Def
My Spiker (or Stealth Rocker). Pretty standard, spikes, Gyro Balls if he needs to, and explodes when he is in trouble. I'm not sure what to go with, they seem pretty much the same (except Stealth Rock kills flying better). Also is it better to stack spikes the three times or just once?
Also, I plan on raising a Garchomp as another Physical Sweeper, and if anything doesn't work out on this team I could swap him in.

Garchomp @ Life Orb
Nature: Jolly
Ability: Sand Veil
Moveset:
>Swords Dance
>Earthquake
>Dargon Claw
>Fire Fang
EVs: 4 HP / 252 Atk / 252 Spe
Fits right into the sandstorm theme with Sand Veil, and so I have heard is a fearsome sweeper. I considered using Brightpowder for him, but I would rather be notorious for other things besides using a cheap item.
None of these are set in stone, and save Ninjask (who is lvl 26) and Foretress (still trying to breed a Relaxed one) they are level one or two for now, so changes can be made easily. And... I don't mind at all if you tear me apart, it can only help me learn!
Thanks for reading!