I meant strongest STAB that doesn't make it commit suicide. I don't want something that's already looking at losing 25% of its HP on its switch-in to start hurting itself as well. <.< Also, Cross Poison is high critical hit ratio and 105 x 2 > 180. Cross Poison also hits electric types harder, and STalking Zapdos seems like a pretty freakin' obvious switch-in against this thing. You will also note that the above CB set has a flying move too; like I said, find me a better physical filler and I'll be glad to change it.
And to be perfectly blunt: wtf are those last two moves on your set good for? A hazer has to be good at taking hits so it can switch into stuff, a description which - I'm sure we can all agree - does not fit Crobat at all. In a similar vein, Toxic requires several turns to reach any serious damaging potential, and with random masochists like Breloom and Heracross about, that move has seriously been reduced to a last resort for stalling types.
...
Crobat isn't a stalling type. <.< And finally, wtf do you plan on taunting? Even walling types would sooner go for the kill when Crobat comes around simply because of its frailness. Just what is this mysterious pokémon who'd use a non-damaging move against it? o.O Those aren't the kind of moves you can just randomly splash into a moveset and expect to have use of. :\ Hypnosis is a must on any Crobat that doesn't plan on using Pursuit or Nasty Plot so that should definitely be in there.
Those items are also quite silly to be honest. Focus Sash on something with a recoil move? (Did you plan on using Brave Bird before Sash kicks in to prevent it from activating or after it comes to suicide Crobat?) Life Orb on something with a recoil move? ('Cause obviously we aren't taking enough damage from Stealth Rock and that single recoil, let's double the fun and have Crobat die even faster =D) Shell Bell is also a lolish item by nature. The amount of damage you'd need to inflict to get more HP out of it than Black Sludge is way more than a CBless Crobat can cause. Meh, Black Sludge, CB or possibly Wide Lens (to further boost Hypnosis' accuracy) are all superior options. O= Anyway, the only thing that Crobat is really good for is picking off the odd weakened opponent (or one with a poor type matchup) and putting big threats to sleep with high-speed Hypnosis. Case closed.
Though, come to think of it, Screech could be kind of cool. Something like
Crobat @ Black Sludge/Wide Lens
Jolly Nature
Aerial Ace/Cross Poison
U-Turn
Hypnosis
Screech
Hypnotize the first opponent, then Screech the switch-in and smack it with U-Turn to bring in a physical sweep. I'm considering lens here since Screech still has that slight accuracy problem.