User blog comment:B214/DxD Zero: Sirzechs story/@comment-2601:8C:601:5692:6089:5245:14CC:C305-20180928184102/@comment-2601:8C:601:5692:BD25:B0B5:DE15:A1A4-20181013063901

Whoops, for some reason it made most of the text bold...weird. Anyways, some corrections to what I typed. The Satans did use them, but kept them sealed normally and concealed their existence because their power could threaten them. In fact, it's to the point that they were never used in the Great War of the Three Powers since even if they had allowed the Devils to win, they'd have been too exhausted to reseal them. The "weapons of last resort" part was referring to House Nebiros head's pretense to unseal them for the civil war, while actually intending to use them to wade war on other mythologies. Also, I apparently missed that in addition to their leader, Malacoda, and Scarmiglione, a third was mentioned: Barbariccia. With this, I can guarantee that the remaining nine will also match those named in Dante Aligieri's Divine Comedy as can be found here, as if there was any doubt.