Weavile w/Pickpocket & Focus Sash?

[Fennekin]

I'd really like a strategy for a Weavile with the ability Pickpocket and the held item Focus Sash. What I need help with is what Nature, EVs, and Movies it should have. This will be for my White version and I'm open to egg/tutor moves. Greatly appreciated!

 

[Synthesis]

@Fennekin ;

-Swords Dance
-Night Slash
-Ice Punch
-Ice Shard/Brick Break

252 Attack/252 Speed/4 Def

Jolly/Adamant

Basically, it'd be pretty standard just with the interesting Sash and Pickpocket combo.