I honestly found it intriguing that Kara was surprised that Clark cared enough for her to come into the sun after her when she took a blast of kryptonite to protect him. It's still a nice moment between them that shows how Clark and Kara are family to each other. It's also fascinating that it took Clark and by extension Kara this long to realize that the yellow sun is their source of power. With the sun and each other for strength, Superman and Supergirl were finally able to defeat Brainiac, with Kara dealing the deserved finishing blow.
