1-10

totally pure; they possess no flaws besides those inherited from their predecessor.

11-14

slightly flawed; having taken a new form from its predecessor's, but with ultimately insignificant alterations.

15-19

significantly flawed; This has resulted in the chapter developing Roll on "Geneseed Mutation".

20

heavily mutated; These Astartes have been cursed to bear the multiple mutations of Roll on "Geneseed Mutation" and Roll on "Geneseed Mutation".