Talk:Dominion Authority/@comment-27092088-20150331132922/@comment-72.201.239.79-20150817165050

There are varying Christian angelic hierarchies written in the Middle Ages, but the most accepted one has 9 levels divided into three Spheres. From lowest to highest they are Angels, Archangels, Principalities, Powers, Virtues, Dominions, Thrones, Cherubim and Seraphim. Since summoning an Archangel is considered a Tier 3 spell, then summoning a Dominion would be a Tier 7 spell. In Yggdrasil, the most powerful Angel was a Seraphim which would have equated to a Tier 10 spell. Ainz is capable of using Tier 10 Magic (although I don't think he can summon Angels as he is undead). But in his present world I think they are only capable of using up to Tier 6 Magic, and anything higher would be considered myth or legend.

That said, the Angel in the crystal was called a Dominion of Authority, which makes things a little complicated as Authorities was another name for Powers which is the 4th ranked Angel, while a Dominion (also called Lordship) is a 6th ranked angel. Of course the world of Overlord is not Christian so the author can use names and ranks any way he pleases.