This is a team I have worked on the past couple of days and wanted to share.
Yanmega/SupaFly @ Focus Sash
Speed Boost
Def/106, Spe/152, Spa/252
Modest
- Protect
- Hypnosis
- Air Slash
- Bug Buzz
First off, my lead. Yanmega is able to outspeed most leads (namely Ambipom) after a Speed Bost from the Protect, which meanwhile is protecting you from the inevitable Fake Out. From there, Yanmega becomes a force to be reckoned with. With the added Speed every turn and 364 Spa, it is able to sweep with it's two STAB moves, Air Slash and Bug Buzz - hence the Focus Sash - while being able to take out the Roserade by using Hypnosis and then OHKO (I think) with Bug Buzz.
Claydol/PlayWithDolls @ Leftovers
Levitate
HP/252, Def/114, Spa/114
Bold
- Stealth Rock
- Rapid Spin
- Earth Power
- Shadow Ball
Next, my Rapid Spinner Claydol. This set is used to (obviously) get rid off Spikes, Stealth Rock and the like. Stealth Rock is used to set up for yourself for perhaps sweeping, as it will give you the edge. Earth Power is a STAB move and more useful then Psychic. Shadow Ball is used to take out the Ghost types that will probably switch into a predicted Rapid Spin
Espeon/ESP @ Life Orb
Synchronize
Spe/252, Spa/252, Spd/6
Timid
- Calm Mind
- Psychic
- Signal Beam
- Hidden Power Fighting
Espeon is what I consider a Sweeper with this set. Calm Mind boosts it's already immense Special Attack to silly heights, while being quite speedy, is able to take almost anything out with it's STAB Psychic, and to go one better, it has Life Orb. Signal Beam is used to take out the ever-annoying Donphan and to take out other Espeons (which aren't exactly abundant, but it's another reason). Grass Knot is a filler really, so if anyone has any better suggestions, I'm all ears.
Feraligtr/CrocodileJim @ Life Orb
Torrent
HP/30, Atk/252, Spe/228
Adamant
- Dragon Dance
- Waterfall
- Ice Punch
- Earthquake
Feraligtr is a Physical Sweeper somewhat. Dragon Dance is extremely helpful with the Speed boost, and, combined with the Life Orb can pretty much OHKO most Pokemon with STAB Waterfall. Ice Punch is to take out Flying types such as Honchkrow and Yanmega and Earthquake is a powerful moves and (again I'm not to sure) can 2HKO Registeel after a Dragon Dance.
Honchkrow/BigBossMan @ Life Orb
Insomnia
HP/4, Atk/252, Spe/252
Jolly
- Sucker punch
- Pursuit
- Drill Peck
- Superpower
More Physical power. Two powerful STAB moves, one of them being Drill Peck which is Super Effective against a lot of UU pokemon and the other being Sucker Punch which is an increased priority move, which can be helpful for finishing them off. Pursuit is a move which I mainly use when I switch into a Psychic or something and predict the switch. Superpower is to put dents in most Pokemon and bigger dents in Bug and Steel types. Life Orb is used instead of Choice Band because I prefer to be able to vary my moves, and not get forced into the wrong move.
Charizard/FlameOn @ Salac Berry
Blaze
Atk/252, Def/6, Spe/252
Adamant
- Belly Drum
- Substitute
- Fire Punch
- Earthquake
This is my wildcard. A full on sweeper who needs no set up from other Pokemon, except for maybe Stealth Rock from Claydol. Send in Charizard on something weak to it, Substitute on the switch, Belly Drum and by now you should have Blaze activated, +6 Atk and +1 Speed. Fire Punch is for STAB and Super Effective hits. Earthquake is to take out anything Fire Punch can't.
Weaknesses
This team does have a couple of weaknesses such as Roserade, Utility pokemon and the like, but I have tried to fit in some Pokemon that should be able to take those out with ease. If you spot any more weaknesses please let me know, and if you can suggest an answer or two, I'd be very grateful.

Yanmega/SupaFly @ Focus Sash
Speed Boost
Def/106, Spe/152, Spa/252
Modest
- Protect
- Hypnosis
- Air Slash
- Bug Buzz
First off, my lead. Yanmega is able to outspeed most leads (namely Ambipom) after a Speed Bost from the Protect, which meanwhile is protecting you from the inevitable Fake Out. From there, Yanmega becomes a force to be reckoned with. With the added Speed every turn and 364 Spa, it is able to sweep with it's two STAB moves, Air Slash and Bug Buzz - hence the Focus Sash - while being able to take out the Roserade by using Hypnosis and then OHKO (I think) with Bug Buzz.

Claydol/PlayWithDolls @ Leftovers
Levitate
HP/252, Def/114, Spa/114
Bold
- Stealth Rock
- Rapid Spin
- Earth Power
- Shadow Ball
Next, my Rapid Spinner Claydol. This set is used to (obviously) get rid off Spikes, Stealth Rock and the like. Stealth Rock is used to set up for yourself for perhaps sweeping, as it will give you the edge. Earth Power is a STAB move and more useful then Psychic. Shadow Ball is used to take out the Ghost types that will probably switch into a predicted Rapid Spin

Espeon/ESP @ Life Orb
Synchronize
Spe/252, Spa/252, Spd/6
Timid
- Calm Mind
- Psychic
- Signal Beam
- Hidden Power Fighting
Espeon is what I consider a Sweeper with this set. Calm Mind boosts it's already immense Special Attack to silly heights, while being quite speedy, is able to take almost anything out with it's STAB Psychic, and to go one better, it has Life Orb. Signal Beam is used to take out the ever-annoying Donphan and to take out other Espeons (which aren't exactly abundant, but it's another reason). Grass Knot is a filler really, so if anyone has any better suggestions, I'm all ears.

Feraligtr/CrocodileJim @ Life Orb
Torrent
HP/30, Atk/252, Spe/228
Adamant
- Dragon Dance
- Waterfall
- Ice Punch
- Earthquake
Feraligtr is a Physical Sweeper somewhat. Dragon Dance is extremely helpful with the Speed boost, and, combined with the Life Orb can pretty much OHKO most Pokemon with STAB Waterfall. Ice Punch is to take out Flying types such as Honchkrow and Yanmega and Earthquake is a powerful moves and (again I'm not to sure) can 2HKO Registeel after a Dragon Dance.

Honchkrow/BigBossMan @ Life Orb
Insomnia
HP/4, Atk/252, Spe/252
Jolly
- Sucker punch
- Pursuit
- Drill Peck
- Superpower
More Physical power. Two powerful STAB moves, one of them being Drill Peck which is Super Effective against a lot of UU pokemon and the other being Sucker Punch which is an increased priority move, which can be helpful for finishing them off. Pursuit is a move which I mainly use when I switch into a Psychic or something and predict the switch. Superpower is to put dents in most Pokemon and bigger dents in Bug and Steel types. Life Orb is used instead of Choice Band because I prefer to be able to vary my moves, and not get forced into the wrong move.

Charizard/FlameOn @ Salac Berry
Blaze
Atk/252, Def/6, Spe/252
Adamant
- Belly Drum
- Substitute
- Fire Punch
- Earthquake
This is my wildcard. A full on sweeper who needs no set up from other Pokemon, except for maybe Stealth Rock from Claydol. Send in Charizard on something weak to it, Substitute on the switch, Belly Drum and by now you should have Blaze activated, +6 Atk and +1 Speed. Fire Punch is for STAB and Super Effective hits. Earthquake is to take out anything Fire Punch can't.
Weaknesses
This team does have a couple of weaknesses such as Roserade, Utility pokemon and the like, but I have tried to fit in some Pokemon that should be able to take those out with ease. If you spot any more weaknesses please let me know, and if you can suggest an answer or two, I'd be very grateful.