With Zangoose's Dream World ability, Poison Rampage, its a slower, frailer but more powerful Ursaring. With Jolly its speed tops out at 306. Swords Dance first turn, toxic orb activates and increases attack by 50%. STAB Facade, then you pick two of Night Slash, Brick Break, Close Combat, QuickAttack (for a stab priority). X-Scissor doesn't help much coverage wise. I should note that if you choose quick attack then your either going to be unable to attack ghosts (if you pick a fighting move as the 4th) or your going to be resisted by all steels, TTar and Terrakion if you pick Night Slash.
I doubt it gets much play, but there is no place to put UU or BL at the moment so I'm mostly just using this as a placeholder untll then. I find it interesting, though its frailty scares me off from using it. It makes a neat Glass Cannon though.
Edit: BTW, if my calculations are right (not saying they are) It can 2HKO Max HP/Max Def Nattorei with Facade.
Zang's Neutral Nature ATK = 329 *2 from Swords Dance = 658 * 1.5 from Ability = 987. Thats if I'm doing it right, if I'm doing it wrong then its 329 * 2.5 = 822
If its 822, he can 2HKO Nattorei if the Random Numbers love him. If its 987 then your almost guaranteed (Not calculating Leftover or any other healing factors Nattorei may have. Like Leech Seed). But yeah, Glass Cannon for the win :)