a few weeks ago i came back to diablo, because of the new ladder new ubers etc.
and since it had passed 3 years since the last time i did a quick search on what was the best class to kill the ubbers. i figured if it killed that the rest would not be a problem. lol
anyway here«s a decent guide on a zealot
http://www.theamazonbasin.com/d2/iguides/zeal.php