Actually, Edward didn't want to activate the Slaughtering God Mode of the God Slayer Mech either. This mode was still unfinished, riddled with drawbacks, one of which was its immense energy consumption. The RT Energy Box's energy reserves were originally vast—under normal use, it would last a week without any issue. But once the Slaughtering God Mode was activated, it would only last for about 10 to 20 minutes. If it weren't for the current dire circumstances, he wouldn't have made such a decision.
The Old Monster noticed the transformation of the God Slayer Mech's form, and his expression grew serious. Although they hadn't yet clashed, he could already feel the oppressive pressure emanating from the God Slayer Mech. It was the first time a technological creation had made him sense danger. Because of this, the Old Monster became cautious, unsure of what further changes the God Slayer Mech might bring.
