Ok, I don't think I'm up to the task of making the Artificer a viable class, not yet at least. So, I'm going to start with something that, at least appears to me to be, simpler: the Ur Priest (Complete Divine version).
Here are my initial thoughts:
Prereqs -
+3 Fort, +3 Will (simple enough)
Iron Will (no problem)
Spell Focus (Evil) - (I'm thinking Evil Brand instead?)
Bluff 6 ranks, Knowledge (arcana) 5 ranks, Knowledge (the planes) 5 ranks, Knowledge (religion) 8, ranks, Spellcraft 8 ranks -
For NWN: Bluff 6 ranks, Lore 5 ranks, Spellcraft 8 ranks
"Special: The character must have no ability to cast divine spells. If such spellcasting ability was previously possessed
(as with an ex-cleric), that ability is forever forsaken." -
maybe use something like the Blackguard script that strips Paladin levels?
Class abilities:
Spellcasting - Cleric List, unique progression
Rebuke Undead - steal script from Dread Necro?
Divine Spell Resistance - Apostate Feat?
Siphon Spell Power - ""
Are this and the next ability possible in the engine?
Steal Spell-Like Ability (Su):
I'm going to try and make this work, if you guys think it is possible.