The arrival of the dragons forced the battlefield to remain still for a considerable amount of time. Heaven and Earth and their forces studied those reinforcements to come up with counters, but a scary truth quickly became evident.
The dragons had sacrificed everything that made them special to gain a spot in the final battle. They were unique beings, so throwing all of that away had awarded them with power that even Heaven and Earth had to respect.
King Elbas and the old rulers had used the world's fairness to their advantage when modifying the dragons. Those creatures already carried the innate purpose of countering Heaven and Earth, so the experts only had to adapt that nature to the rulers' new form.
The outcome of the modifications had been incredible. The dragons had reached a state similar to the dark metal. They had become the embodiment of Heaven and Earth's flaws, turning into beings that existed only to counter the sky.