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20 years ago when Alolans became obsessed with Pikachu, many people tried teaching their pet Pikachu the most popular pastime in Alola other than Pokemon Battling, surfing.
Pikachu as a species got so good at surfing that the Pikachu native to Alola gained the Psychic type to control the board better, and when they evolve they use their tail as a board instead.
