It was not strong initially, but it could mutate and evolve by consuming various resources and energy.
Alone, it was weak no matter how it changed. Even if there existed individuals that could mutate into powerful ones, it was not a permanent path for their species, which was why they often formed groups.
However, they did not simply rely upon their own strength. They were adept at using the flesh and every piece of their hosts as building blocks for their survival.
After one host was decimated silently, they would continue on to the next—again and again in a perpetual cycle.
***
