The truth was, It was Far West that had told him that GhostWalker had lowered his power level to the first stage by separating his original power from his body in order to enter the small world.
Roy was smart and quite capable.
He connected the dots and realized that this pendant must be where he stored his original power.
Of course, he wasn't going to tell him that.
Roy immediately composed himself, staring at him with sharp eyes. "Oh, I can see through you. I know all there is to know about you."
"Then… you must already know that there's a reason you can never win against me. It is a power-storing soul shard that contains the full power of a peak Weapon Master. Against it, what are you? You're not its match. I don't want to waste it on your pitiful life. It is meant for someone else, someone whose life is more valuable than yours. But if you force my hand, you… shall be the one on whom it'll be used!" GhostWalker threatened.