User blog comment:B214/Question & Answers 5/@comment-67.211.8.20-20150512192001/@comment-26345952-20150512231159

yes, in terms of attributes Gram is a dragon slayer and has a sharpness that is either equal or superior to Durandal. The name "Emperor Demon Sword" is of no joke; it's is the strongest demonic sword there is (at least in the series so far).