Dread Necromancer tank build?

[Inevitability]

I'm thinking about taking a level of trickster master spellthief to get shield at cl, and make use of the ghostly Visage auto flank, steal spells with charnel touches, then going into abjurant champ around 10 (probs retrain battle caster for arcane disciple- force for mage armor or something once that happens). From there I think I can try to focus fears. Dreadwitch maybe?

Ghostly visage won't automatically flank if it shares your space: you need Island of Blades for that. That'll take either a level of swordsage or two feats (martial study and martial stance).