This is my build that I am going to use for my main character, my Witch Doctor :wd:. I chose the abilities mainly for the fact that they all have to do with fire, and that if they don't have to do with fire I equipped them with runes that make them have to do with fire. But they also can serve me with utility. I'm sort of a pyro :Thumbs Up: But I think for PvE environments that this build will be very strong. Mainly because I have the summoning skills to be used as my tanks, Summon Zombie Dogs and Corpse Spiders (Which are both on fire), and I've got the ranged attacks that I can use to provide DPS on targets while my pets are killing the targets with Firebomb, and Locust Swarm (Which are also both on fire). But for when they get too close, I also have FIrebats (also on fire) to keep them at bay and drain their life so that if I am in trouble, I can quickly regain the health I lost from being at melee range. When it comes to bosses I got Gargantuan (...slightly not on fire... :o) with the Restless Giant rune so that if I really need a bigger tank than that of just four Zombie Dogs (AND WE'RE ON FIRE AGAIN. :D), I can summon up a boss of my own to take my hits for me (AND BURN THEM DOWN.). My passive skills are mainly revolving around buffing my (on fire) pets, so that they can stay alive in the massive battles (And light things on fire) and so that they can still kick out the DPS (With fire) I need to survive in the BURNING Hells. I think this build will provide me with much utility (And magical fire...ness), and will grant me the skills I need to vanquish my foes. Not to mention I get to set just about anything and everything on fire...Did I forget to mention that? :Thumbs Up:
For getting 100% of the achievements, I think you should definitely be prepared to do some crazy crap like that. Also if there aren't any hardcore only achievements that would be kind of lame, all of the hardcore players wouldn't get any extra rewards for taking that steep risk of creating a hardcore mode character.
http://us.battle.net/d3/en/calculator/witch-doctor#ehYTVb!WTa!ccYZZc