Thanks, everyone for the ideas, sorry for not replying sooner. Real Life's been pesky.
I'm playing again this weekend, but the PCs won't reach her next session. So approximately 3 weeks, most likely is the time frame for those interested.
Yes, looking closer at Dread Necromancer, it's a bit of a dud. Spells Known are too focussed on necromancy, not enough spells that go boom. Demigod status is a definite, if just for the Divine Spellcasting (or whatever it's called) Salient Ability. Dread Lich from Advanced Bestiary is also a great idea, Demilich has the problem of being a +8CR already on top of +2 for the Lich template. It works to bring her up to CR35 but, eh, as I've said it's a bit flavorless. Vlaakith isn't Aecerack.
Vlaakith is a Githyanki, as detailed in Dungeon #100. Base stats minus enhancement, insight, inherent and lich bonuses but inclusive of racial bonuses are:
Str: 16 Dex: 16 Con: - (undead) Int: 18 Wis: 14 Cha: 17
As written, she's a 25th level Wizard Lich (CR 27), but I'm willing to change this. Her final CR has to be 35.
The only mandatory equipment is her two artefacts: The Crown of Corruption and the Scepter of Ephelomon. The Crown gives her rulership powers, creates undead and suck out levels and experience points. Basically, I'm taking this special ability basically by allowing her an unlimited number of 'Dark Craft Experience Points' as detailed by the BoVD for the creation of evil magical items.
As background, Vlaakith rules a vast empire of the Githyanki, the module states that she has conquered 7 or 8 prime material worlds. She is based on a planar metropolis purched upon the remains of a dead god on the Astral Plane known as 'The One In The Void'. She is siphoning diefic power from this dead god in an attempt to steal his divine spark and become the Goddess of the Githyanki (who are, as a race, tempermentally unsuited to religion).
This last gave me the idea on making her a 23/10 Wizard/Ur-Priest, plus the Lich template brings her to CR35 with a bit of 'feat maenuvring' and equipment buffs to bring her Caster level back up to snuff. Not set in stone, of course, Ur-Priest has some significant disadvantages.
Githyanki do have a few Psionic powers, so maybe something can be done with those for a more interesting villain? I'm not up on Psionics, my players have never expressed an interest in them so we've always just gone with the 'it's all just magic' explanation and left it there.
I do plan on dumping the multiheaded red dragon that Vlaakith keeps as a pet and replacing him with Demodragon from the latest Dungeon, I'm hoping that will give them pause for thought. Paragon Terrasque is a good idea. One monster that I'm working into the dungeon is an Atropal Scion, that should boost the undead in the general viscinity.
One thing I am working on also is upgrading the 'Palace of Whispers', Vlaakith's home. In the module, it's made out of the petrified bodies of dead Githyanki imbued with their souls. Going one step further, I'm working on the idea of the Palace being one gigantic 'undead golem' construction that really doesn't like unwelcome guests. The Githyanki have also done alot of research into the Negative Material Plane, indicitive of an entire Prestiege Class based around 'powers of the void' known as the Blackweave Warlock in the books. I'll be replacing these with the new Warlocks, buffed with energy drain type Eldrich Infusions and such, but also I'll be looking at using negative material as walls and such.
Epic spells are a must, you're all correct. I am bumping up Vlaakith's 'kill subordinate' policy one level to 17th (she drains them of experience, then turns them into undead creatures bound to her will). Otherwise the minions will be no fun.
To put the challenge of fighting these PCs, let me give an example from last session. Their town was attacked by a Githyanki invasion force consisting of one Collossal Planar Raider, two Planar Brigs and many assorted Astral Skiffs, literally hundreds of soldiers of different levels and 4 17th level Blackguards riding Adult Red Dragons.
They blew them all out of the sky. Gotta love epic play.
The cleric can turn, oh god, lots. He's a 14/10 Cleric/Radient Servant of Pelor, with the Sun Domain and the Extra Turning Feat required for his class. And, of course, his healing spells are all automatically Empowered and Maximized. The Undead's nightmare.
Alzrius said:
And just to be nitpicky, it's "Incursion," not "Invasion."
To quote Chevy Chase as Fletch: "It takes a big man to admit when he's wrong. I am not a big man."
