User blog comment:Trihexa/Top 10 Most Powerful Beings In The World (Unofficial)/@comment-116.88.102.6-20161003131441/@comment-29255052-20180224050716

"When Shiva said Ajuka is more fearsome than Sirzechs, he isn't referring to the strength, but to Ajuka's cunningness. Ajuka has the craftiness that Sirzechs lack and as a leader, that's makes Ajuka more fearsome than Sirzechs." B214

Nice. Since they both were said to be equal. Sirzechs became Lucifer for his power to make people join him due his leadership and kindness.