Entropic Energy is the basis for many other energies and those that were later engineered. In the Dawn Era, when the Creationists began their work of cutting off areas from Chaos, making them islands of stability in a Sea of Entropy, they took vast amounts of energy and matter away from Chaos.
In the vastness of it all, in an expanse so large that is inconceivable to many, it was minuscule. Yet, the masters of Chaos took notice. They were patient at first, expecting Creation to fail.