The natural survival technique, creating a second body, is not as simple as just creating a puppet. It required going through the internal world and nurturing the body, just like a woman being pregnant with children, just like the legends say an egg gave birth to the creator Pangu. One theory, through the nurturing of the internal world, gradually allowing the form to evolve into an embryo...one step at a time, until it finally matures.
The Golden Horned Beast in its life could have up to three bodies, one during the Star traveller stage, the second one during the Universe stage and the third one during the Sector Lord stage.
As the created bodies can also gradually train, there was no question about it, the first body was definitely the most important!
That was why, choosing the race and bloodline too was important.