I actually made this set before looking at Trachy's, and it's quite similar.
Watchog (M) @ Focus Sash

Role: Mixed Passer
Trait: Keen Eye
EVs: 252 HP / 4 SDef / 252 Spd
Jolly Nature (+Spd, -SAtk)
- Hypnosis
- Mean Look
- Work Up
- Baton Pass
Hypnosis puts them to sleep, and Mean Look keep them from switching, work up, and Pass.
If you have to take an Attack, Atleast You have a Sash, reccomended, As a lead.