However before that time arrived, he would try to achieve as much as he could before he was expelled from the universe.
The second reason he was deeply concerned with growing his lifespan was because this was his true assurance to escape death if he was ever to be killed.
Killing him would be very difficult now because of his new bloodline, as his city of Sheol possesses features that even Rowan found incomprehensible. Since he had no soul, for any attack to truly kill him, they would have to crush his city first.
What sort of attack could destroy a Nascent Primordial Bloodline?
With Rowan's character, he would love to perform experiments to find out before he faced true danger so he could know the baseline of his immortality. How much damage could he safely sustain before he reached the edge of death? This would be the next goal for him when he battled the following set of gods.