Preparation For The Journey To Agartha
"Be honored, Half-Elf," Piccoro said. "Because I'm very generous, I'm letting you pick three of the five storage rings that I extorted from those Saints. Um, you're not allowed to check the contents of each ring. Just pick three at random, and that's that."
While Lady Augustina was escorting the floating island to their new home, Aur spoke to her telepathically and snitched to her, letting her know about the things that Piccoro did after the battle ended.
Because of this, the Steward of the Crystal Palace ordered Piccoro to give Lux half of what he had collected from the Saints, making the Dragon Born feel embarrassed.
Although he did help in defending Lux against the Saints of the Divine Army of Light, the one who ended the battle was still the Half-Elf, who had used a weapon that he had never seen before.