This is a level 97 shaman with 75% crit, 197% crit damage, 75% melee haste and 45% cast haste.
This shaman could use one of Grimm's absurd 2h (edit: i actually looted this about 5 minutes into farming with the shaman lol), so that's that Im gonna try to do for the next hour or so. If you don't catch the live feed here
http://www.twitch.tv/goatsgoatsgoatsgoat, no worries because I will post a highlight video later.
The build here is max out everything in the melee column except your pet damage and do whatever the hell you want with the rest. Your not gonna cast anything anyways except maybe a heal, but you'll do that when you are bloodlusted anyhow.
The tactic here is to press 2 a couple of times and then occasionally heal yourself while pressing D. It's not rocket science, but it owns pretty hard.