Scizor makes one of the greatest Baton Passers, being able to pass Agility/Swords Dance/Iron Defense to a Physical Sweeper? Insanity! Plus he has the defenses to pull it off.
Fora Baton passer, here ya go:
Scizor @ Leftovers
Impish Nature
EVs: 252 HP, 252 SpDef
- Baton Pass
- Agility
- Swords Dance
- Iron Defense/X-scissor/U-Turn
Use Iron Defense if you don't fear him being your last Poke... but I always found it foolish not to have at least one attacking move on any given Poke. Silver Wind was once an option, with the ability to up every stat, but now that it'sa special move, it can be replaced with something like X-scissor or even U-Turn, in case someone threatens your Passing.