User blog comment:B214/Question and Answers 6/@comment-207.96.205.2-20181023013658/@comment-181.115.109.184-20181023042411

In volume 21 Issei use scorching flames on 666 core and it work, but because of it's insane level of regeneration it just continues to generate. Technically 666 core is still in flames and considering how Albion and Ddraig where equals,hypothetically speaking Reduce should work to on 666 just with the same result.