The Ruins of Abundance debuted in Some Kind of Laziness!, where Ash and Acerola traveled there in order to meet Tapu Bulu and get it to help Ash in his training for his rematch with Nanu. The two found Tapu Bulu loafing around at the top of the ruins, initially too lazy to even help Ash. After being surprised by Poipole, however, the Land Spirit Pokémon finally got up and demonstrated its powers by planting several seeds and growing them into big trees in a matter of seconds. As Ash's Rowlet rested on one of the trees for a moment, it was struck by a sudden burst of power, causing it to learn Razor Leaf on the spot.
Soon after, it started to rain, and Ash and his Pokémon started playing in the rain. Unfortunately, Ash's Lycanroc got dirty when the other Pokémon splashed mud on it, causing it to go berserk once again. However, Ash reminded Lycanroc of its time as a Rockruff, when it hadn't minded getting dirty at all. This trip down the memory lane was enough to snap Lycanroc out of its rage. The rain then passed, and Tapu Bulu surprised Ash by challenging him and Lycanroc to a battle. During the battle, Lycanroc was tossed into a pool of water, but emerged from it without going berserk, and eventually learned Stone Edge, much to Ash's pleasure. Tapu Bulu then stopped the battle and offered Ash and his Pokémon Oran Berries from the trees, before going back to lazing off.
In Guiding an Awakening!, the ruins served as the site of Ash's grand trial battle with Nanu. To Ash's surprise, Nanu informed him that he was only allowed to use one Pokémon against his three. After recovering from the initial shock, Ash accepted this condition and chose to use his Lycanroc for the battle. After Lycanroc had beaten two of Nanu's Pokémon, Tapu Bulu appeared above the battlefield and dropped down a Sitrus Berry for Lycanroc to recover its health. During the match against Nanu's last Pokémon, Persian, Lycanroc seemed to go berserk again, and Ash kept yelling at it to calm down, until Lycanroc unexpectedly tackled Ash, revealing that it was in perfect control of itself and was actually using its red-eyed state as a power boost. After countering Persian's Black Hole Eclipse with Lycanroc's Continental Crush, Ash had Lycanroc use Accelerock, defeating Persian and winning the grand trial for him. Nanu then considered giving Ash a Darkinium Z as a reward, but quickly changed his mind, stating that it wouldn't suit Ash, and instead chose to reward him with a Lycanium Z.