Eventually, Yoze shook his head and decided to not kill Blood Master Steel just yet. He felt that the benefits of killing Blood Master Steel were not as great as the cons.
For example, while he would get his body and be able to copy his talents he would lose the opportunity to ask him where he had gotten his blood heart. From the description of the Blood Heart talent, it didn't sound like Blood Master Steel was the abnormality nor was the blood heart.
That meant the abnormal entity that implanted Blood Master Steel's blood heart in his body was still running amuck in the world. Losing the chance to be able to find that abnormal entity would be a huge loss.
As there was a good chance he could get incredibly rare and mystical talents on the same level as Spiritual energy talents. Just his sole encounter with one abnormal entity like the Undead Baby had given him a great talent such as his Life Attraction talent.