The Black Scale Naga was created from the fusion of either four or five different species' bloodlines, culminating in their current form, which possesses the traits of these species and a powerful combat ability.
However, the fusion of different bloodlines has its advantages as well as disadvantages. The mixture of several bloodlines severely hinders the Naga's further progress.
To put it plainly, the genetic repository of the current Black Scale Naga encompasses those few bloodlines' genes, each occupying a part.
And then, because it's the fusion of several bloodlines into one, the traits, talents, and specialties that the Naga display are only a very small part of their genetic repository. The vast majority of the repository is occupied by useless genes, which Lin Xiao wants to take this opportunity to evolve and remove from the Naga.
