Board Thread:Lore Discussion/@comment-99.245.238.247-20140219053833/@comment-16047389-20140220184438

Ayleids were heavily invested in magic, perhaps more so than the Altmer. They probably explored all areas of magic, but they were not famous for necromancy.

Although, they probably did test their latest Destruction, Illusion, and Alteration (and maybe Necromancy for the ones that actually were necromancers) spells out on their human slaves.