User blog comment:B214/Volume 23 discussion blog/@comment-31.11.129.16-20170319171256/@comment-181.115.8.135-20170319183318

Fenrir only fears Vidar not apollo, in actual mythology after ragnarok Fenrir kills odin and Vidar takes revenge and kills Fenrir by crushing his lower jaw and tear it apart. So maybe ishimubi its going with that,what i think its maybe he has a weapon or power of some sort that can slay any kind of creature or beast.