|Boccob, from the Dragon|
Clerics of Boccob are now granted "limited sage ability" in the "supernatural and unusual" major field, with one special category for every 4 points of INT. That's a nice touch, and makes sense given the god's sphere of influence. If they build a stronghold, they can essentially get a free crystal ball, with a few minor differences. They retain the ability to use magic items at 10th level, and have a new spell - disc of concordant opposition - which is a 6th level cleric spell that works like a watered-down version of the ability the deity has. We don't learn anything new about the religion of Boccob; everything is recounted from the Guide, in some cases word for word.