Lost Thunder is the fourth set based on Pokémon from Ultra Sun and Moon. It contains over 210 new cards, making it one of the biggest sets in recent years. This includes seven Prism Star cards—the new mechanic that was released in the Ultra Prism expansion set—alongside 13 Pokémon GX cards and more than 20 trainer cards.
A Nintendo representative told IGN that motion controls won't be required in handheld mode and players can instead use "the joystick on the left Joy-Con controller to aim and press the A button to throw a Poké Ball." The motion controls are intended to enhance the experience, but aren't necessary, Nintendo said.