Unbeknownst to Zeus, Neo's Eternal Skill was at work.
It canceled 10% of the power behind Zeus' attacks. Coupled with the fact Neo could move even after dying, it gave him enough time to use his blessing and regenerate his injuries.
He was Undying.
Zeus killed and killed and killed Neo.
But Neo refused to stay dead.
The battlefield was becoming heavy with an oppressive energy that Zeus couldn't ignore.
It was as if Death itself loomed closer with each passing second.
Each death Neo suffered—each time Zeus killed him—the presence of Death grew in the surroundings.
Neo needed the deaths of someone strong to complete his Concept.
If he couldn't kill others, he had to just die himself dozens of times.
Zeus' eyes narrowed.
He stopped attacking and retreated.
"Why did you stop?" Neo taunted.
"You… you are using me to awaken something," Zeus said. "It would be foolish of me to continue the battle."