X: They flare their frills and generate energy. A single Heliolisk can generate sufficient electricity to power a skyscraper.Y: It stimulates its muscles with electricity, boosting the strength in its legs and enabling it to run 100 yards in five seconds.Sword: A now-vanished desert culture treasured these Pokémon. Appropriately, when Heliolisk came to the Galar region, treasure came with them.