The other domain masters didn't want to let the newbie show off their power when they had just created a complete domain for the first time.
Although not all of these domain masters owned complete domains, those with complete domains immediately summoned their domains one after another, instantly overlapping the space of the joint mimicry domain and Axelle's own domain!
When two or more domains clash, the weaker one would be 'swallowed', and the domain master of the defeated domain would not have any advantage in such a battle.
Even if the mimicry domain was jointly made by a lot of domain masters, when several domain masters with complete domains released their domains, they also withdrew from the joint domain.
These people focused on supplying energy to their own domains, which quickly weakened the mimicry domain by a few degrees.