This will be the comprehensive list of clan immortals.
If this changes, we'll update this post.
Ghob'hlin - Fogel
Valon - Fogel
Dhjin'nen - Fogel
Myrddraal - Fogel
Blademasters - Fogel
Queen's Guard - Avaine
Dreadguards - Avaine
White Tower - Koradin
Murandian Cavalry - Koradin
Borderguards - Galnor, Myra
Ko'bal - Galnor