AGYG 

Demi-god, CN - Humor, Occult Studies, Unpredictability, Eccentricity 

Zagyg, the Mad Arch-Mage and punster, is the sole known servant of Boccob, for the latter recognizes no others except on special occasions. Zagyg is mad only in that none but his master seems to be able to fathom his reasoning and sense of humor; few, if any, hold him as their deity. 

Zagyg will appear in nearly any guise when upon the Prime Material Plane. His actual appearance is said to be rather unremarkable in a wizardly sort of way. Likewise his garb is varied to suit the situation, dark blue and silver being colors often noted. 

Being able to employ weapons and devices common to both fighters and magic-users, Zagyg is likely to appear with a vorpal blade in one hand and a wand of wonder in the other. Harmful effects of items employed by this being tend to affect not him but his opponents instead. Thus, if Zagyg donned a ring of weakness, all those around him might well be affected while Zagyg is untouched. He has been known to strike with a padded club, or cast a haste spell upon an opponent, however. Somehow, despite his seeming madness, Zagyg survives, carries out his assignments, and moves on. 

Zagyg can likewise travel all planes and is the bane of many. He serves Boccob most carefully, but apparently out of his own will and a desire to retain enlightened neutrality and uncertain humor everywhere. 

It is said that anyone mad enough to seek to serve Zagyg must confront the demi-god personally, and periodically thereafter, and be subject to judgment.