First off, people should probably keep in mind that he's playing Diamond, not Pearl or Platinum.

Also Honchkrow is a total boss. It has AMAZING attack and really good special attack. It's not the fastest pokemon, but it's not terrible in that aspect. The only problem is that it's not very defensive, but you'll probably knock out the other pokemon before they can hit you. Also it can have Super Luck, Night Slash, and Scope Lens, so it can hit with critical hits a lot.