User blog comment:Pualover/Overlord Power Level/@comment-24558666-20150911155233/@comment-26836039-20150911163011

There's actually no basis for claiming only level 100 players can obtain world-class items. Yggdrasil's motto is "freedom of exploration". I doubt the developers had set a level limitation. At best assumption, some of them might have level restriction but not all. There's also no part in Ainz reminiscence that players with lower level can't enter a specific area. If they can't enter, it's due to special conditions set by other players or the monsters inhibiting the area are too strong which bar the lower level players from entering.

Well I decided to change SGG's level to 90+ since you said "at least one of them was level 100". This is so just we can be on the safe side since we lack any firmer clues at the moment.

As for DA, where did the account "DA is stronger than evil deities" came from? The anime chart shows DA's level to be less than 50 and when you count that it can use up to 7th tier spell then 46-49 seems about right, assuming it'd a pure build.