Once things were settled at the Foundation, Chuck called upon Azriel to teleport him home so he could be with all his Pokemon, as well as train up to prepare for the Pokemon League, as well as decide who he takes with him. While he was prepping, Cosmo the shiny Lunala went through his bag and found the device that was dropped by Necrozma when it was captured. Necrozma wandered over and the two conversed for a bit before they both touched the device, combining to form a shiny Dawn Wings Necrozma. Chuck turned around as this happened and stared on in shock. "Cosmo, Necrozma, what did you do!?" he said to them, it? Dawn Wings put its hand on Chuck's shoulder to reassure him this is what they both wanted, and handed him the device, which had now turned into the UltraNecrozmium Z, which he equipped onto the new and improved Cosmo.