When Dream Clouds saw that Evil Emperor had absolutely no way of fighting back and struggling in Happy's hands, she knew that the scene she absolutely did not want to see had appeared in the fight once more. It was why he decided to attack resolutely. At the same time Evil Emperor diverted Happy's attention, she decided to strike first and launch her offense beforehand.
It had to be said that Dream Clouds' plan was right.
Once Happy was affected by the momentum around him and revealed the slightest opening, Evil Emperor might be able to break free from Happy's hands and regain a chance to catch his breath and recover. Then, the victor of the fight would be left unknown once more. In fact, Class One Hall could use its large lineup of top-class elites to turn the tides.
However, she had clearly miscalculated Happy's control over the situation and overestimated Evil Emperor's current condition.