User blog comment:Gilgamesh79/Demonic Energy and Magical Energy/@comment-82.178.102.63-20170829160229/@comment-26709288-20180103000209

You're also forgetting Rizevim's ability to nullify sacred gears and sacred gears enhanced abilities. The prerequisites for being a super devil seems to be immense power and a special/unique ability.

Rizevim and his human-shaped aura of destruction

Ajuka and his Kankara formula and his prediction ability

Rizevim and his sacred gear cancel ability