If they were not abusive to their ancestors however they would summon them all and then double their number and attack at the same time. Incredibly demoralizing and it would double there numbers in one go. Kind of incredible if used on a battlefield. Not to mention most Dunmer integrate blade and magic well.
On the flipside a raging flood of expert enemy spellswords on fire, that cannot harm them, racing at you could be pretty damned scary too.
What you think?
Anyone who could beat them based on racial powers and skill bonuses?
Assume equal army size initially then add powers and skill bonuses.