After opening the wormhole as Lucy instructed, Zack felt a surge of power coursing through him, akin to the sensation he experienced when utilizing his skills. As he gazed upon the now-opened portal, the crystal in his hands vanished, its purpose seemingly fulfilled. It was a momentous occasion, marking the first time Zack had wielded such immense power, yet it felt strangely familiar, as though it were an extension of his own abilities.
"I guess this is on the same level as true magic," Zack thought while rubbing his chin thoughtfully.
Despite the gravity of the situation, Zack couldn't shake the sense of awe and wonderment at what he had just accomplished. The mysteries of the crystals and the wormholes seemed to deepen with each passing moment, leaving him with more questions than answers.