Ye Xiaowu had more or less predicted that Gu Fei could kill a monster thirty levels higher. The strongest aspect of a level 70 Werewolf was its regenerative ability. He knew that Gu Fei would be a menace to Werewolves after Gu Fei had gotten himself a weapon that could completely nullify regeneration from that chain quest back then. Moreover, Gu Fei's full-Agility build allowed him to almost match a level 70 Werewolf's speed. Actually, he was more surprised that Gu Fei was only troubling the Werewolves now despite the latter's indomitable fighting prowess, which Ye Xiaowu had personally witnessed when Gu Fei had beaten up other players at level 0!