User blog comment:B214/Talk About What You Want! 2/@comment-24098614-20140818231513/@comment-1359322-20140819000157

Nah, there's no way Issei is at Grayfia's level. Like discussed before, the only reason Issei won was because of the surprise factor of the Wyvern and the Longinus Smasher. Also because Rossweisse helped stopped Euclid's move. If Issei didn't have those factor, Euclid would have won. Remember, it was the same in Volume 16, Issei only manage to hold back Euclid because of the surprise factor of the wyvern.