Building a BBEG Wizard/Psion need help with spells (alter self)

[Blightersbane]

Several questions on this highly involved (secretly evil) 18th npc.

1. She is 3rd Wizard / 3rd Psion / 10th Cerebramancer this brings her to 16th level
What do I do with the next 2 levels? Split 1 Wiz / 1 Psion? 2 Psion or 2 Wiz or go 2 levels in other class? Opinions needed

2. I am giving her equivalent magic items- $ for an 18th level pc build. Which reminds me what is the going $ for an 18th pc? I would appreciate greatly any suggestions on magicals. My intent is to make sure the party is surprised by her onslaught.

3. What spells / powers could she possess that reflect her evil nature? This is easy for a cleric they have evil spells but how do I let her evilness shine via arcane or psionic powers? Can you name a couple of spells that this build would secretly have, hiding them from the pc’s until she chooses to expose her true evil self?

4. The spell alter self if this pc is an outsider from what list does she pull possible critters she can turn into?

This is a rarity for me to create a high level caster sp please excuse my lack of arcane/psionic knowledge (ignorance)


Blightersbane

 

[Infiniti2000]

1. I'd put the 2 levels in one class or the other or perhaps some other PrC. Or, use a race/template that has a CR adjustment.

2. How about a suitable lesser artifact instead? Assuming you can support such a thing in your campaign world. IMO, that sort of thing will have the most "surprise" element you can hope for.

3. If you have the BoVD, it has suggestions for evil components, like organs of various creatures. That would work, IMO. Or, just think of evil-oriented thematics for normal spells.

 

[hanniball]

1) Unless there is another Arcane/Psionic dual-progression Prc that I'm not aware of, take the final two levels in either Wiz or Psion. Whichever one you decide on, you'll get 8th level spells/powers which will be almost necessary in remaining formidable against an 18th level party.

2) Character wealth is on page 135 of the DMG. 440,000 gp for an 18th lvl character. For items, I'd suggest a Torc of Power Preservation, Greater Metamagic Rods, a Robe of the Archmagi, and the stat boosting Tomes/Manuals. Your spells and powers will make up a larger percentage of your power.

3) Tjeck out the Book of Vile Darkness for some incredibly evil spells.

4) The Monster Manuals 1-3. Any outsider of 5HD or less can be emulated via Alter Self.

Either way...just my 2 cp