As our heroes continue their tour of the Decolore Islands, their next stop is Torom Island, where they meet up with none other than Professor Oak! He’s come to catch a Rotom as part of a research paper he’s writing about the unusual Pokémon’s various form changes, triggered by entering certain kinds of electric devices. As he’s telling Ash, Iris, and Cilan all about Rotom and what it can do, the lights flicker and then go out. Nurse Joy explains that the Rotom are drawn to the tasty electricity from the island’s power grid, so lunchtime blackouts are a common occurrence.