Piers is the seventh Gym Leader GalarianTrainers face in their Gym Challenge. He is well known for writing songs and singing as he regularly does so in Spikemuth. More often he tends to reveal his strategy to his opponents, yet he has the strength and skills to win regardless. Spikemuth is the only Gym in Galar not built over a Power Spot; previously, Rose had asked Piers to relocate his Gym to a faraway Power Spot, but Piers refused and opted to be the only Gym Leader not to use Dynamax. As a result, the town is rarely visited by fans, so Piers blames himself for letting his home fall into obscurity and dilapidation. He has been desperately trying to support the town with his Dark-type Pokémon but often gets frustrated with the limits of his strength.
In Pokémon Sword and Shield, Piers is the only Gym Leader absent from the Gym Challenge's opening ceremony in Motostoke. He makes his first appearance once the player clears the Spikemuth Gym Challenge, where it is revealed that the Team Yell Grunts are actually Spikemuth Gym Trainers in disguise, and that their leader is Piers. After the player defeats Piers, Marnie approaches him for her turn at the Gym Challenge. Their conversation reveals that Piers had previously planned to stand down as Gym Leader after the Champion Cup ended and pass down the role to his little sister. However, Marnie refused the offer, stating that she could not be a Gym Leader if she succeeds in becoming Champion.
After the player defeats Marnie in the Champion Cup Semifinals in Wyndon, Piers rededicates Team Yell to cheering on the player instead. He and Team Yell assist the player and Hop in accessing Rose Tower by helping them find the Macro Cosmos's League staff hiding the monorail key needed to reach the tower.
Piers plays a vital role in helping to stop the Dynamax Pokémon created by Sordward and Shielbert. Having now stepped down as a Gym Leader following the Champion Cup's conclusion, he accompanies the player and Hop to all the stadiums in Galar to help their Gym Leaders defeat the Dynamax Pokémon. After the player captures ZacianSw/ZamazentaSh, Piers gives them his rare League Card and returns to Spikemuth, where he can be found giving a concert to the members of Team Yell. He can also appear as an opponent in the player's Champion tournaments and the Galarian Star Tournament, despite no longer being a Gym Leader.
"Spikemuth lacks a Power Spot that would allow Pokémon to Dynamax, and thus not many fans come to visit the town. Piers feels responsible for allowing his town to fall into obscurity and dilapidation. Once in battle, Piers tends to get riled up and will often reveal his strategy early on, but he has the strength and skill to triumph regardless. However, his true passions are singing and song writing, and his talents in these fields are well-known. As such, he currently hopes that his younger sister will take over as Gym Leader."
Rare League Card
"Here are some words from Piers when he first became the Gym Leader of Spikemuth. "Uh... ... ... The name's Piers. It's too bad we can't Dynamax our Pokémon in Spikemuth, but you could say we have a more authentic style of Pokémon battles. And I plan on showin' that off. And well... I have a younger sister, and she's got way more talent than me. But until she's old enough to become Gym Leader, I'll keep rockin' with my crew and make sure Spikemuth stays lively!""
When Marnie was five, Piers caught this Morpeko as a present to his little sister, which eventually became her starter Pokémon. According to her League Card, Marnie's Morpeko helped her become less of a crybaby and more cheerful and outgoing.
Piers gave the camera up but secretly removed its memory card, tricking the brothers into leaving empty handed. When Sordward and Shielbert later returned for the card, Piers, Henry, and Casey successfully uncovered their faces. The brothers attacked Henry and Casey, but were stopped by Piers's Obstagoon. Before Piers could finish them off, Marnie arrived and told him to avoid going too far, allowing Sordward and Shielbert to flee. Later, after regrouping with Henry's group and Hop, Piers and Marnie revealed to everyone that they were siblings.
Later, Piers and the other Galar Gym Leaders were informed by Leon and Sonia that Rose, Sordward, and Shielbert were working together. Hoping to discover whether or not Rose intended on bringing harm to Galar, the Gym Leaders gathered at Rose Tower, only to be stopped by Oleana. While Oleana kept the Gym Leaders busy, Marnie, Henry, Casey, Bede, and Hop headed up an elevator to meet Rose, only to learn he wasn't in the building. Appearing on a video screen, Rose announced his intention to restart the Darkest Day and ensure the safety of Galar's future. Power Spot lights began appearing all over the region, causing Pokémon to start Dynamaxing at random.
Piers was introduced as a Supporter card in the Pokémon Trading Card Game during the English Sword & Shield Series (the Japanese Sword & Shield Era). It was first released in the Japanese Infinity Zone expansion before debuting in English in the Darkness Ablaze expansion, with an illustration based on the take artwork of the character. It was also released as a Full Art card and Secret card in both expansions, with an illustration by kirisAki. Piers allows the player to search their deck for an Energy card and a Darkness-type Pokémon card, reveal them, and put them into their hand. The player then shuffles their deck.
Piers's uniform number is "061", which can be read in Japanese as goroawase for 悪い warui, meaning "bad".