im not sure about the sheilds thing but what i do know for sure
Abbadon was the captain of the first company of the Luna Wolves/Sons of horus/ black legion the 16th geneseed/legion
abbadon could not be a clone but he could be a resonable make up
for the legions were created and moving across the stars before the Primarchs were "found"
remember the primarch babys were scattered all around the galaxy
and the emperor use their genetic make up to make 20 or 18 legions since 2 are wiped from the records
when he was reunited with a primarch he put them in charge of their respective legion
so thats why abbadon couldnt be a clone |