He thought that Legion was his best option because he had guessed that Legion likely possessed an innate ability that was compatible with the path of killing.
He had confirmed this suspicion by up to half when he sensed through his flesh the high favorability that the other divine flesh of killing had towards Legion.
His hopes for Legion is so high he believes that Legion has the potential to become a godling. So he thought it was just a matter of time before he got what he wanted from Legion.
Even so, he would need to wait for a while more before he could get what he wanted from Legion. It was why he was very happy to hear about the sudden appearance of another angel of killing.
It was good news to him there was another angel of killing to pin his hopes on because he would have more than one option to get what he wanted and because he might not have to wait for long to have his wish fulfilled.
