For Mirage's Sake! Phantom's Last Battle! - S1.E41

Mirage launches an all-out attack on Earth, trapping all of its citizens and creating an army of Saiarks across the world. Wanting to put a stop to this, the Cures head to the Blue Sky Kingdom to take the fight straight to Mirage, this time becoming able to fight at their full strength. When the girls get separated from each other in the middle of a thick fog, Yuko comes up against Phantom and battles against him, asking him if a world of misfortune is truly what he and Mirage wants.