The golden angel's energy originated from the holy energy of the holy armor. Although it had a lot, it was not unlimited. On the other hand, all the black spirit needed was mana gems.
Normally mana gems could not be compared with holy energy, but it was a totally different story considering the massive amount Abel had taken out.
Under the green dome of the Oak Tree, the golden angel was engulfed in black smoke. It was a battle of who could burn the most energy.
Time passed, but Abel never took his eyes off the battlefield.
It was not that he didn't want to get involved, but he might not be able to do anything to the power of will of a demon, even in his most powerful dragon form.
After all, the scale of victory was tipping towards the black spirit even though the process was slow.