Anti Lead
Whimsicott @ Leftovers
Ability: Prankster
Impish Nature (+Def,-SpAtk)
Ev's: 252 Hp / 252 Def / 4 SpDef
~ Substitute
~ Leech Seed
~ Encore
~ Stun Spore
Whimsicott is an excellent Anti-Lead, as well as a phenomenal staller/subseeder. First off, I would provide leech seed (For the other sweepers/stallers of my team), and then go into a substitute, or possibly an encore (For those who lead with stealth rock/spikes). If they lead with an Anti-Lead/Suicide Lead, I can go for the Stun Spore to slow them down to bring in a sweeper. Another possible role that Whimsicott could play would be to switch out and come back in when the opponent has a weakened and statused pokemon, subbing and encoring until KO.
Dragon Dancer: Physical Sweeper
Salamence @ Life Orb
Ability: Intimidate
Naive Nature (+Spe,-SpD)
Ev's: 4 Hp / 252 Atk / 252 Spe
~ Dragon Dance
~ Outrage
~ Earthquake
~ Fire Blast
Salamence will most likely come in after Whimsicott sets up, or to clean up at the end of the game. If my opponent brings in a bulky water or wall, salamence can easily set up Dragon Dance to start punishing anything that gets in it's way. Outrage is obvious, being that it's one of the most powerful dragon type moves in the metagame. Earthquake and fire blast will finish off pesky steel types (Skarmory/Steelix/etc.)
All Out Attacker
Mienshao @ Life Orb
Ability: Regenerator
Naive Nature (+Spe,-SpD)
Ev's: 252 Atk / 4 SpA / 252 Spe
~ Hi-Jump Kick
~ U-Turn
~ Hidden Power Ice / Stone Edge
~ Fake out / Substitute
Mienshao acts as an all out attacker. Mienshao will come in, hit hard, and get out before getting OHKO'd. Hi-Jump Kick provides an instant STAB, and hits hard against psychic and steel types that might get in the way. U-Turn provides a safe way for Mienshao to get out and heal on the side, while Hidden Power Ice deals with the dragons that will easily OHKO this somewhat fragil pokemon. Fake Out is to provide the flinch and yet another STAB for Mienshao, painfully wearing out the other opponents team if needed.
Special Sweeper
Gengar @ Leftovers
Ability: Levitate
Timid Nature(+Spe,-Atk)
Ev's: 4 Hp / 252 SpA / 252 Spe
~ Substitute
~ Shadow Ball
~ Focus Blast
~ Thunderbolt
Gengar is definatly a good choice to be Special Sweeper of this team. Providing excellent Speed and SpA, Gengar can outspeed and break down walls and stallers. Substitute is to prevent status, and to scout out if the opponent decides they cannot beat out Gengar. Shadow Ball and Focus Blast provide perfect coverage for Gengar and for the team, taking down physical walls like Dusclops/Skarmory/Snorlax/Blissey. Thunderbolt is for bulky waters that may be a threat to my team, or are just annoying to take down. Disable could be another option to get rid of Annoying Status moves/Stat Boosters/etc.
Status Staller and Wall
Dusclops @ Pre Evolution Stone
Ability: Pressure
Calm Nature (+SpD,-Atk)
Ev's: 252 Hp / 80 Def / 176 SpD
~ Ice Beam
~ Night Shade
~ Will-o-Wisp
~ Pain Split
Dusclops acts as a Special wall, as well as a great annoyer. Ice beam will help provide coverage for salamence due to it's 4x weakness to ice moves. Night Shade is a great STAB move against other ghosts. Will-o-Wisp is to set up the burn for pokemon like Whimsicott to go in and stall, or for Haxorus/Mienshao to sweep through easily. Finally, pain split provides decent recovery, and time for dusclops to attack and switch out if needed (Such as if a sucker punch comes along his way, or if a pokemon such as dragonite/scizor overpowers)
Wish Supporter
Vaporeon @ Leftovers
Ability: Water Absorb
Bold Nature (+Def,-Atk)
Ev's: 248 Hp / 252 Def / 8 SpD
~ Surf
~ Wish
~ Protect
~ Toxic
Vaporeon is very valuable to my team as a Wish Supporter (Due to my not picking Blissey instead). Besides wish supporting, Vaporeon can also check fire types, which could be an easy death to my Whimsicott. Surf provides STAB towards hard hitting fire types such as Magmortar, Heatran and possibly Entei. Wish will help out fragile pokemon, such as Mienshao and Salamence (If Salamence gets hit by pokemon like Weavile, or even a starter like Donphan with Ice Shard). Vaporeon can scout or set up Toxic/switch out using protect, or use protect and then wish to provide defenses against a possible OHKO move due to a STAB thunder or grass type move.

Whimsicott @ Leftovers
Ability: Prankster
Impish Nature (+Def,-SpAtk)
Ev's: 252 Hp / 252 Def / 4 SpDef
~ Substitute
~ Leech Seed
~ Encore
~ Stun Spore
Whimsicott is an excellent Anti-Lead, as well as a phenomenal staller/subseeder. First off, I would provide leech seed (For the other sweepers/stallers of my team), and then go into a substitute, or possibly an encore (For those who lead with stealth rock/spikes). If they lead with an Anti-Lead/Suicide Lead, I can go for the Stun Spore to slow them down to bring in a sweeper. Another possible role that Whimsicott could play would be to switch out and come back in when the opponent has a weakened and statused pokemon, subbing and encoring until KO.
Dragon Dancer: Physical Sweeper

Salamence @ Life Orb
Ability: Intimidate
Naive Nature (+Spe,-SpD)
Ev's: 4 Hp / 252 Atk / 252 Spe
~ Dragon Dance
~ Outrage
~ Earthquake
~ Fire Blast
Salamence will most likely come in after Whimsicott sets up, or to clean up at the end of the game. If my opponent brings in a bulky water or wall, salamence can easily set up Dragon Dance to start punishing anything that gets in it's way. Outrage is obvious, being that it's one of the most powerful dragon type moves in the metagame. Earthquake and fire blast will finish off pesky steel types (Skarmory/Steelix/etc.)
All Out Attacker

Mienshao @ Life Orb
Ability: Regenerator
Naive Nature (+Spe,-SpD)
Ev's: 252 Atk / 4 SpA / 252 Spe
~ Hi-Jump Kick
~ U-Turn
~ Hidden Power Ice / Stone Edge
~ Fake out / Substitute
Mienshao acts as an all out attacker. Mienshao will come in, hit hard, and get out before getting OHKO'd. Hi-Jump Kick provides an instant STAB, and hits hard against psychic and steel types that might get in the way. U-Turn provides a safe way for Mienshao to get out and heal on the side, while Hidden Power Ice deals with the dragons that will easily OHKO this somewhat fragil pokemon. Fake Out is to provide the flinch and yet another STAB for Mienshao, painfully wearing out the other opponents team if needed.
Special Sweeper

Gengar @ Leftovers
Ability: Levitate
Timid Nature(+Spe,-Atk)
Ev's: 4 Hp / 252 SpA / 252 Spe
~ Substitute
~ Shadow Ball
~ Focus Blast
~ Thunderbolt
Gengar is definatly a good choice to be Special Sweeper of this team. Providing excellent Speed and SpA, Gengar can outspeed and break down walls and stallers. Substitute is to prevent status, and to scout out if the opponent decides they cannot beat out Gengar. Shadow Ball and Focus Blast provide perfect coverage for Gengar and for the team, taking down physical walls like Dusclops/Skarmory/Snorlax/Blissey. Thunderbolt is for bulky waters that may be a threat to my team, or are just annoying to take down. Disable could be another option to get rid of Annoying Status moves/Stat Boosters/etc.
Status Staller and Wall

Dusclops @ Pre Evolution Stone
Ability: Pressure
Calm Nature (+SpD,-Atk)
Ev's: 252 Hp / 80 Def / 176 SpD
~ Ice Beam
~ Night Shade
~ Will-o-Wisp
~ Pain Split
Dusclops acts as a Special wall, as well as a great annoyer. Ice beam will help provide coverage for salamence due to it's 4x weakness to ice moves. Night Shade is a great STAB move against other ghosts. Will-o-Wisp is to set up the burn for pokemon like Whimsicott to go in and stall, or for Haxorus/Mienshao to sweep through easily. Finally, pain split provides decent recovery, and time for dusclops to attack and switch out if needed (Such as if a sucker punch comes along his way, or if a pokemon such as dragonite/scizor overpowers)
Wish Supporter

Vaporeon @ Leftovers
Ability: Water Absorb
Bold Nature (+Def,-Atk)
Ev's: 248 Hp / 252 Def / 8 SpD
~ Surf
~ Wish
~ Protect
~ Toxic
Vaporeon is very valuable to my team as a Wish Supporter (Due to my not picking Blissey instead). Besides wish supporting, Vaporeon can also check fire types, which could be an easy death to my Whimsicott. Surf provides STAB towards hard hitting fire types such as Magmortar, Heatran and possibly Entei. Wish will help out fragile pokemon, such as Mienshao and Salamence (If Salamence gets hit by pokemon like Weavile, or even a starter like Donphan with Ice Shard). Vaporeon can scout or set up Toxic/switch out using protect, or use protect and then wish to provide defenses against a possible OHKO move due to a STAB thunder or grass type move.