Question: what episode of miraculous ladybug is luka in?
Answer: In "Silencer," Luka is akumatized by Hawk Moth into the voice-stealing supervillain Silencer and confesses his love for Marinette. In the season 3 episode "Desperada," he temporarily receives the Snake Miraculous from Ladybug and meets its kwami Sass, and transforms into the snake-themed superhero "Viperion".