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Sheridan was the leader of a Pokémon cheering squad. He claimed that cheering during a Pokémon battle would help a Pokémon heal itself, and allow it to gain the upper hand. Thatcher thought this was an interesting concept, so he joined the cheering squad.
However, when Ash and his friends visited the school, they immediately became suspicious. Max even thought he saw electricity flowing from the drums. After spying on Sheridan, he discovered that the entire concept was a fraud. Pokémon were being hidden in the drums and using Aromatherapy and Helping Hand during battles.
After his fraudulent activities were uncovered, Sheridan took off running, promising to send a check. It is not known what happened to him after the incident.
| Roselia and Vileplume are the pep squad's Pokémon that were seen in the drums. Sheridan assigned them to heal James's Cacnea and Jessie's Seviper with Aromatherapy.
Vileplume's and Roselia's only known move is Aromatherapy.
| Shroomish and Makuhita are the pep squad's Pokémon that were seen in the drums. Sheridan assigned them to heal James's Cacnea and Jessie's Seviper with Helping Hand.
Shroomish's and Makuhita's only known move is Helping Hand.
|This article is part of Project COD, a Bulbapedia project that aims to write comprehensive articles on each one-time character of the Pokémon anime.|