[WildAce]

Since Crobat hasn't been done yet in the Analysis, guess I'll do it here:

Crobat @ Black Sludge
Ability: Inner Focus
Nature: Jolly
Evs: 252 ATK / 252 Speed / 4 HP
- Hypnosis
- Cross Poison / Aerial Ace
- U-Turn
- Haze

Aside from Scarf Gengar, the fastest Hypnosis user you'll ever meet.
Crobat actually has "moderate" defenses; enough to take unSTABed SE hits or STAB normal hits, but not more than 2 .

Anyways, come in on it's resistances (Ground, Bug, Fighting, Grass), and put something to sleep.
More than likely, they'll switch out. So, U-Turn on that to set yourself up in an advantageous position.

Haze is primarilly if:
- You don't like the 70% accuracy for Hypnosis
- Sleep Clause prevents Hypnosis from being used again AND you need to Haze.

Lastly, the primary attack: Cross Poison vs. Aerial Ace.
Personally, I prefer AA since it allows it to almost fully counter Heracross (4x resistance to both it's STAB moves).
However, the STAB + High CH Ratio of Cross Poison (along with it's ability to hit many types for neutral damage) makes it a fine choice as well.