I just fought him....he was blue to me at 34 so I think the minimum level shoud be lower....
He also dropped 4pp 5g and 3 bone chips for me...
Hits pretty hard too...felt like he hits around 3 or 4 levels above con.
Extinct
This skeleton used to guard the entrance to Kaesora in an effort to prevent curious low level iksars from defiling Xalgoz's home.
Formerly of the Field of Bone.
Information from: Bonecollectre