Cleric 5 (Knowledge, Madness domains - Madness IIRC is in Defenders of the Faith and Dieties and Demigods, and Monte Cook at one point said that balancewise there is no reason not to allow it as a core domain.)
Alienist 4 (Tome and Blood)
The character does not worship a god per se - instead he, and members of his order, know that if the Creatures of the Far Realm are not contained, they will awake and destroy all that civilization has created. So, in something akin to an act of divine rape, their organization draws power from those creatures of the Far Realm, protecting the world at the expense of their own sanity...
A tragic character, to be certain. The Knowledge domain is required in order to make Knowledge(Planes) a class skill, and Madness just has a certain harmony with the Alienist class and the whole character concept.
Alienist 4 (Tome and Blood)
The character does not worship a god per se - instead he, and members of his order, know that if the Creatures of the Far Realm are not contained, they will awake and destroy all that civilization has created. So, in something akin to an act of divine rape, their organization draws power from those creatures of the Far Realm, protecting the world at the expense of their own sanity...
A tragic character, to be certain. The Knowledge domain is required in order to make Knowledge(Planes) a class skill, and Madness just has a certain harmony with the Alienist class and the whole character concept.