Liu Jie had been trying to come up with a way to increase the rate at which Elegance produced insects.
Elegance's current rate of insect production was very fast. However, it was still unable to complete the insect army formation in a short span of time.
As a result, Elegance was greatly restricted during battle, and it caused Elegance to only be suited for formation battles.
However, skirmishes were much more common in the wild than formation battles. Skirmishes were the most common form of battle in the wild.
Liu Jie had attempted many methods with little success.
He had even tried searching for suitable insect-species lifeforms in the hopes of using their abilities to speed up Elegance's rate of insect production. However, he never managed to find such insect-species lifeforms.
Death Echo finally gave Elegance the possibility of rapidly producing insects during skirmishes.