I guess the point of this build was to create a Cleric with a defense as powerful as his offense. This build combines a DR of 21/- with over 600 health and the ability to heal himself to full health with a single spell. In addition, he does quite respectable damage with his Greatsword, especially with a few of his Cleric buffs to help him out (Darkfire, Divine Favor, etc.). He should be a pain to stealthers as he can't be flanked, and he has access to True Sight as well.
His only real weakness is his very low AC, but this character was really meant to absorb damage rather than to avoid it. I would tend to think that he would thrive on a low-magic world in which high-AC builds seem to be penalized by the fact that AB increases with lvl whereas AC does not. I'm not sure whether or not a build like this has been done before, although I would expect that someone has done something similar.
