Magcargo was with Carl, who punished Ken, Harry and Al for their failed mission.
Carl sent Magcargo, who, along with Sham's Slowking, prevented Gold and Crystal from interfering with their plans. Though Gold's Politoed used Hypnosis on Sham and Carl's Pokémon, Magcargo managed to bypass that weakness by using Sleep Talk, which turned into Flamethrower on Polibo, who tried to counter with Water Gun. Since both Magcargo and Slowking were fearless when asleep, Gold's Sunkern and Crystal's Parasect used Giga Drain to defeat the Pokémon and restore their health. Both Slowking and Magcargo were knocked onto Sham and Carl, thus ending the battle.
|Sleep Talk||Slick Slowking|
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.