Nihasa.
Hal drove all of the liquified Devil energy he had inside his body as well as the essence he had gotten from his session with Melinda which he coupled with all that he had reaped from the mutated guards and began the process,
His Devil bloodline grew stronger and with it came an increase in his natural strength but the true increase was bound to be sensed once he took on the Mid-world devil form.
His resilience and speed as well as the effectiveness of his {Regeneration} were all aspects where Hal noticed an increase but since that had not really been the aim of this whole refinement and absorption, he mostly ignored it.
Instead, he pushed in for that Bloodline that seemed so close he could almost quite literally touch it. He actually reached out in what looked to be an attempt to touch it.
And then he was gone from the room as his consciousness sunk into his very Dark soul World.