User blog comment:B214/Volume 23 discussion blog/@comment-79.44.187.109-20170408222317/@comment-10330822-20170410233221

Well, here's the thing. Tiamat is the strongest of the Great Dragon Kings, and it was stated she was Satan-Class. So that means she is already stronger than like 99% of all the dragons. There are only 4-5 dragons stronger than her, and with Satan-Class strength, she's stronger than almost all the devils too, with the Satans and maybe Top 10 devils being the exception.

So yeah, I can see people be scared of her.

However, Ddraig and Albion are even stronger, then again, in her Outrage Mode, who knows?

Also, I subscribe to Tengen's theory, it probably is just a question of dominance. Even though Ddraig and Albion are stronger normally, they still fear Tiamat for comic reasons.