DXD Power Scaling
(Let it be known. This is the official power scaling from the high school DXD, Wikipedia.)
Low Class
The weakest classification, which the vast majority of beings fit into (being either regular Humans or weaker Supernatural beings); Angels, Fallen Angels, Demons, and Devils of this classification would have 1 pair of wings.
Middle Class
The second-weakest classification, which beings of above-average strength such as intermediate Reincarnated Devils fit into; Angels, Fallen Angels, Demons, and Devils of this classification would have 2 pairs of wings.
High Class
The third-weakest classification, which many young Pure-Blooded Devils of the Underworld fit into; Angels, Fallen Angels, Demons, and Devils of this classification would have 3 pairs of wings.
Ultimate Class
The fourth-weakest classification, which quite a few of the strongest Devils (including the Top 10 ranked Rating Game players) fit into; Angels, Fallen Angels, Demons, and Devils of this classification would have 4 pairs of wings.
Monarch Class
The middle-most classification, also referred to as Seraph Class, Cadre Class, Satan Class, and Leader Class, which is considered to be the average Power Ranking one must have to be a leading figure in a major faction; Angels, Fallen Angels, Demons, and Devils of this classification would have 5 pairs of wings.
God Class
The fourth-strongest classification, which the vast majority of full-fledged Gods as well as Super Devilsand Archangels fit into; Angels, Fallen Angels, Demons, and Devils of this classification would have 6 pairs of wings.
Cosmic Class
The third-strongest classification, which only the strongest Gods as well as weaker full-fledged Primordial Beings fit into; Angels, Fallen Angels, Demons, and Devils of this classification would have 7 pairs of wings.
Primordial Class
The second-strongest classifiction, which most Primordial Beings with the exception of the very strongest ones fit into; Angels, Fallen Angels, Demons, and Devils of this classification would have 8 pairs of wings.
Extradimensional Class
The strongest classification, which the most powerful beings in the Alphaverse and Omegaverse (such as Alpha and Omega themselves) fit into; Angels, Fallen Angels, Demons, and Devils of this classification would have 9 pairs of wings
Weekly Power Status
-- Power
Ranking 
-- Power
stone