The most important thing is...
"After this talent absorbs the power of the moon, it seems that it can reset the cooldown of the Epic Skill 'Crescent Moon Giant Wolf'."
Lian Yue's Crescent Moon Giant Wolf is apparently no less powerful than Uta's 'Physical Shackles' in terms of bursts and enhancements. The duration of Crescent Moon Giant Wolf is even longer and does not have obvious side effects.
However, in contrast to this overwhelmingly powerful transformation, the cooldown time for the Crescent Moon Giant Wolf skill is extremely long.
'The duration of the Crescent Moon Giant Wolf is fixed and does not depend on the amount of energy one has. Once the power of the moon transformation is exhausted, it will naturally recover over time.'
At present, once Lian Yue transforms, the cooldown period can be as long as several days.
Without the ability to transform, Lian Yue is merely a decently strong fighter.