Talk:My Little Pony Equestria Girls: Rainbow Rocks/@comment-188360-20140819000039/@comment-24908786-20140820000621

All I can sum up is that Adagio saw the column of dark energy when Sunset's Dark Side was brought out by the tainted Element of Magic, then saw when the Humane Six unleashed the power of the Elements of Harmony on her.

That was enough to cause Adagio's gem to react to the detection of magic from Equestria, and give Adagio the catalyst to plan the Dazzlings' revenge on Equestria itself by first getting re-energized and gaining the adoration of the students at CHS.