The Dazzlings witness the fight against Flash Fire and Cap's fight against Dark Ultron alongside Magneto, Storm, Psylock, Archangel, and Light Ultron/Nur's spirit speaks/Sea Song's manipulations/"Rainbow Rock"

Here is how the Dazzlings witness the battle of Canterlot High, Nur's spirit talks to the Dazzlings, Sea Song manipulates them, and the Rainbow Rocks song goes in Code Red's Adventures of My Little Pony Rainbow Rocks.