User blog comment:Crimson and Darkness/Volume 24 discussion blog/@comment-32252462-20180217092640/@comment-27.251.197.196-20180217144809

Zenith Tempest may be the 2nd strongest longinus but unlike the Boosted Gear's previous wielders, Issei has unlocked many new abilities like Penetrate that even Draig had also forgotten. He can also use Reflect that he gained from Divine Dividing. Moreover, he was using a partial dragon deification which is also available to only Issei. He is currently very different from previous Boosted Gear users. Also, while zenith Tempest is stronger than Boosted Gear does not mean Dulio will be automatically stronger than Issei. Ultumately, they are just tools that depend on their user. Afterall, Issei had also previously defeated Cao Cao who possessed the strongest longinus and the ultimate spear