Just at that moment, as the thought of using [Repeat] ability was rising, Fang Yu sensed that if he used [Repeat] now, given the current intensity of his Bloodline Spirit, it could instantly raise the erosion level of the Bloodline Spirit to a terrifying height, possibly even 100% on the spot.
So Fang Yu stopped immediately, causing a brief pause, giving Jinfang Zai a little bit of reaction time. However, Jinfang Zai at that moment was facing himself in the Yuan Demon Body, and without similarly evolving through demonization, he couldn't seize that tiny gap to react.
Of course, that's all in hindsight.
Judging from the sensations back then, the intensity of the Bloodline Spirit and the intensity of demonization were still far apart.
