One reason was that No. 18 was the only non-combat Pet Beast in the team, and this trait was clearly supportive.
Secondly, next, No. 18 could assist in copying by studying the built-in time accelerator.
In Lu Ran's team, Pet Beasts that possessed the ability of time included Dark Crow, Yun Bao, Liu Hua, and No. 18, which was about to fuse with the Flower of Time.
Among them, No. 18 was definitely the most suitable for working to copy materials.
However, since there was a desire to fuse No. 18 with the Copying Trait, solving the issue of time alone was not enough.
The energy issue also needed to be resolved.
Copying a resource, the copier would experience a huge consumption, much greater than the energy contained within the copied resource.
If it were a Pet Beast lacking mana, it could not control this trait at all.
After all, even though the copying time was reduced, the required stamina consumption would not decrease.