[The "King of Nightfall" character card is cooling down (Cooldown time remaining: 1 Copy World)]
He Ao's gaze retracted from the grayed-out character card.
He vaguely remembered that during the Copy World, after using the King of Nightfall, he could continue to use it, but the cost for the second use had become two Exchange Stars.
However, after the Copy World ended, the character card entered a cooldown state where it couldn't be used.
A cooldown time of "1 Copy World" means that I can't use this card in the next Copy World?
Does this imply that the system's ability to "revive" past characters cannot be frequently employed?
Since the actual time each Copy World takes isn't long, could all uses of the same character card within one Copy World be considered as one?
And the time between two Copy Worlds is already long enough, so they can't be combined.