Guys guys guys I've come up with the best idea ever!!! A baton passing team, except not a chain, just partners!
Ninjask@Leftovers
Speed Boost
Jolly(+Spe,-SpA)
252 Speed / 252 HP / 4 Def
-Protect
-Substitute
-Hone Claws
-Baton Pass
Ninjask stalls for speed boost with substitute and protect, yeah, blahblahblah, use hone claws whenever the sub is up, after one or two hone claws or four speed boosts, baton pass to:
Rampardos@Life Orb
Mold Breaker
Adamant(+Atk,-SpA)
252 Atk / 252 Spe / 4 Def
-Earthquake
-Stone Edge
-Iron Head
-Zen Headbutt
With the speed, attack, and accuracy boosts, Rampardos can sweep with Earthquake and Stone Edge, and the others are fillers just in case. Make sure you baton pass with a sub though, because he might die on the switch-in. With Mold Breaker, he gets perfect coverage(I think) with SE and EQ, but the flinches could be nice with the headbutts plus they could be Super Effective against something that could resist otherwise.
Drifblim@Ganlon|Apicot Berry
Unburden
Timid(+Spe,-Atk)
252 HP /252 SpD|Def(depending on berry)/ 4 Def|SpD
-Substitute
-Baton Pass
-Stockpile
-Toxic
Use Ganlon with 252 SpD, Apicot with 252 Def, 4 Def with Ganlon, 4 SpD with Apicot, or vice versa if you want. Drifblim has the largest Baton Pass-able Sub, which he will use to bring his HP down for the berry boost (and Unburden boost, but I'm not sure if that is Pass-able. Might change this to Aftermath, that way if someone starts sweeping I can put a large dent in them by switching Drifblim in). Toxic slowly breaks down, and Stockpile lets you last longer plus you can pass the boosts to:
Shuckle@Leftovers
Sturdy
Sassy/Relaxed(+SpD/Def,-Spe)
252 HP / 252 SpD or 252 Def / 4 SpD or Def
-Toxic
-Bulldoze
-Struggle Bug
-Encore
Once he has received the Substitute and a few Stockpiles, he is the bulkiest pokemon ever. Bulldoze and Struggle Bug to irritate and cause switches(possibly), Toxic for slow death. Encore at the perfect time and you can stall like no tomorrow. Run whatever evs you want, for my team I'm not so sure which is better. I put sturdy on because his other abilities are useless and you might get hit by a random crit once the sub has broken. You could run a berry like before with Gluttony, but that means you lose either Bulldoze or Struggle Bug for Substitute, not a good idea (if you want to stall really well).
Vaporeon@Leftovers
Water Absorb
Calm(+SpD,-Atk)
252 HP / 252 SpD / 4 SpA
-Wish
-Baton Pass
-Work Up
-Substitute
Vaporeon can be a good switch-in to the Shuckle counters, with Water Absorb and a resistance to Steel. Another Baton Passer, just sub, work up a few times, replacing the sub when necessary, and wish when health drops or to Pass to the next person if they're low on health. The more Work Ups the better, especially to help:
Electivire@Life Orb
Motor Drive
Rash(+SpA,-SpD)
144 SpA / 112 Atk / 252 Spe
-Earthquake
-Thunderbolt/Wild Charge
-Ice Punch
-Flamethrower
Vaporeon tends to attract Electric moves, which is perfect for Electivire. He gets a speed boost from Motor Drive, and the boosts from Work Up. Rash because SpA isn't as good as Atk, and you want those t-bolts and flamethrowers hitting hard. Wild charge or t-bolt is up to you, whether you get stab with the higher attacking stat or not. I prefer t-bolt, due to no recoil. More evs in SpA to help balance it out, but still a nice investment in Atk to deal damage with EQ and Ice Punch.
Alright, that's my team. Please help me with these sets, as some of the Evs and items I'm not so sure about. Thanks!

Ninjask@Leftovers
Speed Boost
Jolly(+Spe,-SpA)
252 Speed / 252 HP / 4 Def
-Protect
-Substitute
-Hone Claws
-Baton Pass
Ninjask stalls for speed boost with substitute and protect, yeah, blahblahblah, use hone claws whenever the sub is up, after one or two hone claws or four speed boosts, baton pass to:

Rampardos@Life Orb
Mold Breaker
Adamant(+Atk,-SpA)
252 Atk / 252 Spe / 4 Def
-Earthquake
-Stone Edge
-Iron Head
-Zen Headbutt
With the speed, attack, and accuracy boosts, Rampardos can sweep with Earthquake and Stone Edge, and the others are fillers just in case. Make sure you baton pass with a sub though, because he might die on the switch-in. With Mold Breaker, he gets perfect coverage(I think) with SE and EQ, but the flinches could be nice with the headbutts plus they could be Super Effective against something that could resist otherwise.

Drifblim@Ganlon|Apicot Berry
Unburden
Timid(+Spe,-Atk)
252 HP /252 SpD|Def(depending on berry)/ 4 Def|SpD
-Substitute
-Baton Pass
-Stockpile
-Toxic
Use Ganlon with 252 SpD, Apicot with 252 Def, 4 Def with Ganlon, 4 SpD with Apicot, or vice versa if you want. Drifblim has the largest Baton Pass-able Sub, which he will use to bring his HP down for the berry boost (and Unburden boost, but I'm not sure if that is Pass-able. Might change this to Aftermath, that way if someone starts sweeping I can put a large dent in them by switching Drifblim in). Toxic slowly breaks down, and Stockpile lets you last longer plus you can pass the boosts to:

Shuckle@Leftovers
Sturdy
Sassy/Relaxed(+SpD/Def,-Spe)
252 HP / 252 SpD or 252 Def / 4 SpD or Def
-Toxic
-Bulldoze
-Struggle Bug
-Encore
Once he has received the Substitute and a few Stockpiles, he is the bulkiest pokemon ever. Bulldoze and Struggle Bug to irritate and cause switches(possibly), Toxic for slow death. Encore at the perfect time and you can stall like no tomorrow. Run whatever evs you want, for my team I'm not so sure which is better. I put sturdy on because his other abilities are useless and you might get hit by a random crit once the sub has broken. You could run a berry like before with Gluttony, but that means you lose either Bulldoze or Struggle Bug for Substitute, not a good idea (if you want to stall really well).

Vaporeon@Leftovers
Water Absorb
Calm(+SpD,-Atk)
252 HP / 252 SpD / 4 SpA
-Wish
-Baton Pass
-Work Up
-Substitute
Vaporeon can be a good switch-in to the Shuckle counters, with Water Absorb and a resistance to Steel. Another Baton Passer, just sub, work up a few times, replacing the sub when necessary, and wish when health drops or to Pass to the next person if they're low on health. The more Work Ups the better, especially to help:

Electivire@Life Orb
Motor Drive
Rash(+SpA,-SpD)
144 SpA / 112 Atk / 252 Spe
-Earthquake
-Thunderbolt/Wild Charge
-Ice Punch
-Flamethrower
Vaporeon tends to attract Electric moves, which is perfect for Electivire. He gets a speed boost from Motor Drive, and the boosts from Work Up. Rash because SpA isn't as good as Atk, and you want those t-bolts and flamethrowers hitting hard. Wild charge or t-bolt is up to you, whether you get stab with the higher attacking stat or not. I prefer t-bolt, due to no recoil. More evs in SpA to help balance it out, but still a nice investment in Atk to deal damage with EQ and Ice Punch.
Alright, that's my team. Please help me with these sets, as some of the Evs and items I'm not so sure about. Thanks!