Seems Trendy...
Lets start with the best Baton Passer in the Pokemon World, Ninjask
Blorg Ninjask ∫ƒ∂©˙µ¬¬˚˙∂©˙∆˜∫√ƒ∂߃¬_¬ (Ninjask) (M) @ Leftovers

Jolly Nature
EVs: 4 HP / 126 Def / 126 SDef / 252 Spe
Trait: Speed Boost
Moves:
• U-Turn
• Baton Pass
• Substitute
• Swords Dance
Well, the whole U-Turn thing seems awkward, but it makes sense. You would set up a Sub, see what the opponent would do, if that attack would Kill Ninjask, just set up Swords Dance after you set up the sub and the opponent misses by the evil Hax then U-Turn cuz you get that attack boost and you get to Revenge Kill. The Substitute is for if you wanna stall and get dat Speed Boost and if the sub is sti up you could either Swords Dance or Pass the Substitute.
Now we have our weird Monkey with paint on its tail, Smeargle
Ima Firin Mah Smeargle BLAAAAAAAAAAAH (Smeargle) (F) @ Focus Sash

Timid Nature
EVs: 252 HP / 4 Def / 252 Spe
Trait: Own Tempo
Moves:
• Baton Pass
• Quiver Dance
• Spore
• Substitute
Smeargle is the 2nd or 3rd Best Baton Passer in The Pokemon World. Why not use him? Spore them to sleep and Hopefully you won't have to set up substitute and you could just start quiver dancing. Not much to say here. You get Sp.Atk Boost for the upcoming Special Sweeper and the attack from swords dance for the upcoming special Sweeper. This all fits together like Peanut Butter and Jelly.
MEW MEW MEW MEW MEW MEW MEW MEW MEW! I think the user Mew will like this.
M to the E to the W ÍÁÏˇ¨Î‰¨‰´ÍÎØÏ∏‰ØˇÏˆ (Mew) (X) @ Leftovers

Bold Nature
EVs: 252 HP / 252 Def / 4 SDef
Trait: Synchronize
Moves:
• Baton Pass
• Swords Dance
• Taunt
• Rock Polish
Mew probably goes into battle with a substitute then starts setting up Rock Polishes and Swords Dances. Taunt is needed so others can't set up or whirlwind and roar Mew away. Good thing Roar goes last ;)
We now have a popular sweeper, but NO! we can't break the chain of Baton Passing.
Scizor leiks Dog Biscuts ©πª¨©˙𓨥©¨˝Ø∏بÓÔÓÇ (Scizor) (M) @ Expert Belt

Adamant Nature
4 HP / 252 Atk / 252 Spe
Trait: Technician
Moves:
• Baton Pass
• Bullet Punch
• Pursuit
• Bug Bite
I don't know what to say... The Baton Pass is to pass on to a Special Sweeper Bullet Punch is Priority Pursuit is Priority Bug Bite is to rid of ChestoResters and it Gets Technician boost.
We now make our stop to a Special Sweeper, Togekiss
I WANNA KISS YOU WITH MAH TOGE (Togekiss) (F) @ Leftovers

Modest Nature
EVs: 4 HP / 252 SAtk / 252 Spe
Trait: Serene Grace
Moves:
• Air Slash
• Thunder Wave
• Aura Sphere
• Baton Pass
We have a Paraflinch combo here with Serene Grace which is really annoying. Aura Sphere is our coverage move and Baton Pass is to pass the stats it has to a different pokemon.
As You can see i only have 5 pokemon and i need another and it HAS to have Baton Pass... maybe a mixed sweeper? I will take any suggestions.
-The Pika