User blog comment:B214/Volume 17 spoilers./@comment-117.217.186.212-20140224111716/@comment-1359322-20140225003126

I think you guys are mistaking something. Yes we are talking about Ddraig's hidden ability but it's not for Issei, it's for Vali. It's believed that the Boosted Gear has one of Albion's hidden ability while the Divine Dividing has one of Ddraig's hidden ability.