User blog comment:B214/Volume 23 discussion blog/@comment-76.175.162.45-20170401070749/@comment-82.60.161.59-20170401093133

Phoneix tears doesn't regenerater body parts, they can re-attach them if you still have that part. Azazel arm was destroyed, not ripped off. However he could regenerate it if Valerie helps him with Sephiroth Graal.