I am rereading S3 and reached the part where Baam meets Leviathan. It said it was above all the creatures even Ancients and also above the Irregulars but in the recent chapters it mentions that the Irregulars are beings who shouldn't exist in this Tower.
So, my guess is that Leviathan is stronger than most Shinheuhs and when Traumerei created him, he and the other Irregulars weren't at their peak yet. Then they all surpassed him but Traumerei was still unable to control him. Traumerei's "Arrogant Dragon" is probably as strong or maybe a bit weaker.
I assume that Admins were excluded from what it said, but what bugs me in this case is the fact that it's so much harder for Baam to use Leviathan's power when he has two Admins inside him as well. Is it harder because he swallowed Leviathan whole and only got a piece of the Red Thryssa? We don't know where he got the Blue Thryssa exactly too.
I'm wondering about traumerei's water dragons. It would appear bam is being set on a path that would have devour them them, combine them with the leviathan, then use the full mimesis (no partial mimesis bs) and then getting a hit on traumerei. And as absurd as that even having an effect sounds... that also sounds way too easy? With the reveal that bam can't even access the power he used against white yet the implication would be that he can't conventionally fight at the CC level just yet, or that's probably about his current limit. I suppose the leviathan could easily breach that gap considering bam hasn't even used a stage one levi mimesis, let alone a full transformation. I suppose it would be very fitting for leviathan and mimesis to play into traumerei's downfall as both are a product of his utter contempt for tower residents. IMO SIU needs to address what can or can't hurt or kill a family head before he actually goes through with this.
Yes, easy to say, not easy to do. Leviathan was willing to lend its power to Baam but Baam refused and absorbed it. I assume that when it lends someone its power, the host becomes much stronger but falls under its control. It's likely what it was suggesting. It wants the three other Dragons to reach a level beyond Traumerei, kill him and take control of Baam for good.