AZGHUL THE ELF-BREAKER (latest incarnation)

So to begin with, this is definately a Timmy Tank (people familiar with CCG's might know the term). It has so many bangs and whistles that even the most ADD teenager in his prime will find enough excitement and animated carnage to keep their concentration. Another attraction to the build is that it requires only that the monster set be farmed. The rest is BoE and most the pieces are common and affordable. A complete set should be under the 150K mark.
I think what makes this the most interesting tank in terms of dealing damage is that a high percentage of it will be coming from the sets:

And so it is only dependant on how high your magicka and spell damage (+ other factors) are that influence how much extra damage you want to deal or how much more tankier your own play style needs to be.
The absolute to the creation is being a DK unfortunately. Lay down a good flame damage talons to keep everyone nice and close, flame chain in a coupla casters / archers. Throw out the taunts to get your tank on and let the electricity pulses.... well.... pulse. As a final crescendo watch as both lightning and flame meteor aoes rain down on your foes.
The exact distribution of CP's and extra abilities i'll leave up to you to make it your own build, but needless to say I've strayed quite over into the max magicka and regen areas and use sharpened weapons. I have no idea about the numbers or what beats what, nor do I care. I'm a Johnny player, so I just make stuff that other people don't for exactly these reasons but can still complete all the content, and are a hell of a lot of fun to play.
Enjoy and Destroy!!