In a class action about the “Game of Thrones: Conquest” mobile game, attorney Raphael Janove had his own battle to conquer: Convincing an appeals panel that developer Warner Bros. Entertainment Inc. designed the app purposefully to trick users into unwittingly agreeing to an arbitration clause.

“Here a user’s attention is drawn to striking graphics from the ‘Game of Thrones’ HBO series— large, huge fonts saying ‘Game of Thrones: Conquest’ and a bright blue ‘play’ button,” Janove told a U.S. Court of Appeals for the Ninth Circuit panel.

Game of Thrones Image from “Game of Thrones.”