Countless Wings was a perfect counter to Noah's abilities.
The Ghostly Claws and the Demonic Form managed to repel the explosive power of the fiery butterflies, but Countless Wings kept on moving, and her arrows prevented Noah from chasing after her in a straight line. Also, as she kept Noah away, her wings would leave a trail of fire that created even more butterflies.
Noah found himself unable to reach her even when he used the Merging spell, which left him in a hopeless pursuit that only depleted his energy. It seemed that he didn't have any chance to gain the upper hand against Countless Wings.
'I didn't want to use this just yet,' Noah thought as he focused on activating another spell.