A single Detachment may not include both an Archmagos Prime and an Archmagos Prime on Abeyant.
Designers note from FAQ: For the purposes of the Feudal Hierachy special rule: Treat Callab Decima Invictus as an Archmagos Prime. Treat Achmagos Draykavac as an Archmagos Prime. Treat Archmagos Draykavax on Abeyant as an Archmagos Prime on Abeyant. Treat Archmagos Anarcharis Scoria as an Archmagos Prime.on Abeyant.
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