Alanna's Embrace is a good robe for any casting class.
Alanna's Embrace worn by a Human Female
This item is a rare drop from Ras Frostwhisper in Scholomance.
The estimated droprate is 1%.
There are currently two npcs with this name, but none of them have a direct connection to Ras Frostwhisper; Alanna and Alanna Raveneye.