This build is extremely off the wall; however, it has synergy and survivability at least theoretically. It's a theory build I am going to test out based on the Morninglord Iconic.
Elcry the Darkshadow 20 Morlinglord Iconic 15/2/3 wizard/cleric/rogue.
dex:16 +4(tome) +8 item + 4(tensors) = 32
con: 14 +4(tome) + 6 item + 4(tensors) = 28
Intel: 18 +4(tome) +5 level + 6 item + 6 enhance = 39
Feats: 7 normal:
Twf, itwf, gtwf.
Insightful reflexes .
wizard bonus feats:
search, disable, spell raft, concentration.
Explanation of the split:
2 cleric gets you 8 total sp for negative energy and a an additional 2% crit chance for 5 ap
3 rogue for trapping skills and dex to hit and damage with light weapons
15 wizard for all the other reasons.
The main idea is to fight in Vampire form with improved shrouding you heal yourself as you beat on your opponents. If things get really dicey can switch to wraith from for the 35% incorporeal. While you have the intel for strict DC casting mainstay will be acid fogs, walls of fire. While in vampire form would consider charm monster since friends are always nice to have.