Happy new year!
[sblock=Dire Lemming]
It all looks good to me (though I admit I haven't been over the math with a microscope). The feats are good, the staff is ok (if it's "incessant chatting" is kept to a reasonable level) and I can help you a bit with the background.
One thing worth remembering is that the party currently is working for the local demonlord on a mission that is likely to cause the destruction of Cel-Candon (your new home). Your character doesn't know this, but it's a pretty reasonable assumption to make. And it's not at all certain that you will be able to disuade the party from its quest, since they all have their own reasons to be loyal to their current mistress. If you cannot change their actions and will not surrender your home you may even be forced to a confrontation with them. I don't mind that at all, and I'll make sure that you'll be able to pose a threat to them if you act wisely. You'll be eachothers NPCs, so to speak, and that could be a lot of fun. But that's not set in stone, it's up to your RP-ing how you handle the situation.
Cel-Candon is one of the last remnants of an ancient and powerful elven civilisation (the information the party learned before entering is well known to you). Your people, highly cultured, a bit decadent, ancient, wise, formerly mighty and adamantly arrogant, have long ago lost their innocense. They have done great deeds, won heroic victories in just wars, healed the world from the edge of universal death to a lush paradise (that has now been despoiled), been the leaders of magic, science and biologic engineering for most of the worlds recorded history. But none of that has come without a price. Long before the demons invaded the scene your people's main source of power was the consumtion of souls and life energy for spellcasting, magic item production and especially epic spells. Since soul-energy was always by far the most cost-efficient source of usable XP your ancestors simply had no choice but to use it or face extinction from foreign elves, humans or other civilised races who also developed similar forms of magic. But none of them were as skilled as your people. Even as your ancestors exterminated all but the faintest of traces of the lesser humanoids on the western continent they still justified their actions by their innate moral superiority and their gods-given destiny of greatness. They were not Good, by any other standards than their own. But they never really cared what others thought of them.
The demonic invasion changed much. The elven civilisation of Cel Candon was already in decline and fell at horrifying speed to the chocking display of awesome demonic power. The elves fought back fiercely, and enjoyed a handful of victories, but were soon washed away by the tide. Only in Cel Candon, the fortress-capital of their continental empire and a handful of other enclaves (protected from direct demonic attack by a strange magical radiation that prevented the entrance of extra-planars) did the elves hold out for a time before most of them too fell to the demons slaves and allies. Cel-Candon became a ruin, haunted by ghosts and shadows, hiding great treasures that few knew still existed.
Recently the people of an elven enclave, under the leadership of the epic, legendary and mysterious arcane spellcaster The Queen of Autumn allied themselves with a tribe of Duergar who were rumoured to posess an artifact that could ward against the undead. Trough impressive diplomacy and common enemies the two peoples joined together and transported themselves to Cel Candon. In a brilliant, lightning quick strike the Queen of Autumn and her elite cadre defeated the two liches Yangava had made the guardians of her Cel-Candon. While battle raged in the heart of the underground fortress around them the dwarven arch-clerics began their ritual to activate the artifact to drive the undead away. For every passing second the defenders seemed to become stronger and the attacking mortals dropped like flies and rose again against their allies. Only a few hundred remained when the clerics completed their ritual and conquered the city. Ever since then they have been maintaining the ritual to keep the artifact at work in the heart of the fortress as their minions and distrusted allies search for the treasures that brought them there.[/sblock]
