In the end, Yuchi had still defeated Prometheus.
From Yuchi's perspective, Prometheus could be considered the most powerful member of the myriad races he had fought up to this point. His fighting spirit was admirable, much higher than Long Fengyun's, but it still could not be compared to the ancient monsters.
Perhaps it was because they had already died once in the ancient era, so no longer had any scruples when it came to fighting and trying to emerge victorious at any cost.
Prometheus had given his all during battle, but it seemed that he was still carrying the heavy burden of wanting to revive the pufferfish race. As for whether that made him stronger or weaker, that was up to one's own perspective.
Without that burden, would he have fought harder and with more reckless abandon, or would he have changed his fighting style altogether?