Pokémon (1997)

S09E21 Curbing the Crimson Tide!

Chaos erupts in the city as Ash and his friends arrive, encountering a mysterious Pokémon draped in a red cloak called Red Lightning. This enigmatic figure has been taking on local Trainers, reveling in its victories like a true supervillain. May's hopes for a fun day are dashed when Red Lightning defeats her and her Squirtle in a humiliating match. Determined to put an end to the disruption, the group sets out to discover the identity and motives of this formidable foe.