Decisions

In this brief moment of rest, Cain took a slight breath. 

His mind rapidly analyzed, 'My overall Soul reserve capacity is at 90%. But just using 70% of this for even just a short breath considerably drained me. I was around 95% before. Like this, I should be able to go on for many rounds as long as I end all rounds very quickly.'

Whether it was Soul energy, Qi or Divine Qi, Spirit energy, Source Law essence, or even Astral energy, all forms of energies have a reserve capacity. 

This would be the energy stamina anyone has when engaging in battle. 

It was a completely different concept from one's bodily stamina. 

As long one's energies reserve capacity hasn't reached absolute zero, they would be able to erupt with some form of strength. 

Even the highest God Galaxies experts followed this standard. 

The limit of reserved capacity varies from person to person.