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 - "Because they steal whatever power they can, ur-priests learn to manipulate their energy in ways that confound other casters. An ur-priest of 6th level or higher can temporarily sacrifice two (or more) lower-level spell slots and use those slots to prepare a higher-level spell. The higher-level spell must be of a level the ur-priest can cast. Only one exchange of this sort can be made each day. The levels of the lower-level slots are totaled, then reduced to three-quarters (round down) to determine the level of the extra higher-level spell slot. For example, an ur-priest who sacrifi ces a 3rd-level spell and a 5th-level spell can use that spell slot to prepare an additional 6th-level spell (3 + 5 = 8, and 8 × 3/4 = 6)."
Are this and the next ability possible in the engine?
Steal Spell-Like Ability (Su): The most powerful ur-priests can use the same techniques that siphon off the gods’
spell power to steal the spell-like abilities of another creature. Once each day, when a creature with spell-like abilities is within 50 feet of a 10thlevel ur-priest, the ur-priest can choose one of the spell-like abilities of the creature to steal for himself. The ur-priest can use the spell-like ability as often as the creature can, or three times per day, whichever is less. The ur-priest uses the
ability as the creature does with regard to caster level and save DCs. This ability only lasts 24 hours. The creature with
the spell-like ability does not lose the ability when the urpriest steals it. If an ur-priest tries to steal a spell-like ability
that the creature doesn’t have, or tries to steal an ability that is supernatural rather than spell-like, the attempt automatically
fails.
I'm going to try and make this work, if you guys think it is possible.