User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-24053170-20180716184925/@comment-24595619-20180716205556

But, Ban healed from that injury, it just left a scar on him (Saji's Black Flames are more similar to the flame of the Demon Clan from Seven Deadly Sins). Even then, saying that Issei could defeat Trihexa himself would be the same as saying that he could beat all of the Chief-Gods, God-Class beings, and Satan-Class Devils who are combating Trihexa.