He was given a Plusle and Minun by his grandfather, but he was unsure of whether or not he could properly train them. Having very little trust and confidence in his Pokémon, all Thatcher could do was cheer for others using their Helping Hand. Ash, whom Thatcher looks up to as a 'hero' and a master, taught him to believe in his Pokémon.
Thatcher received these two Pokémon from his grandfather. They are able to cheer for other Pokémon, revitalizing them with their rejuvenating power. For a while, this is all Thatcher used them for, since he was unsure of how to battle. However, once Ash came along, he learned how to put his faith fully in his Pokémon, strengthening their bond. Later, he joined a pep squad with Plusle and Minun, as seen in Cheer Pressure!.Plusle and Minun's known moves are Helping Hand and Spark.