User blog comment:B214/Volume 23 discussion blog/@comment-73.46.6.122-20170318162505/@comment-31137559-20170319011155

So you're saying that Vasco Strada could take on a Satan-class devil like Grayfia on his lonesome? He's an old man and Issei's team aren't regular opponents. He's OP but age catches up to everyone. Him and Arthur weren't even fighting at full power and he got tired out from that. You think he could stand up against Issei's team and get off scot-free? The others have been getting stronger too. It's not just Issei.