Crimson Invasion is the fourth main expansion of the Sun & Moon Series of the Pokémon Trading Card Game.

It takes its Pokemon from the Pokémon Sun and Moon video games. This set adds more Generation VII Pokémon, the Synthetic Pokémon Silvally, and the Ultra Beasts.

This set debuts the new Ultra Beasts as Pokémon-GX cards, such as Nihilego-GX, Buzzwole-GX, and Guzzlord-GX.

The English expansion sent collectors scrambling to get them on November 3, 2017.

Crimson Invasion introduced Ultra Beast Pokémon-GX. They have a red GX graphic and a red and black bar below the HP. The type states the Pokémon is an Ultra Beast. The bar containing the GX attack’s energy cost, name, and damage, shows a red and black bar with a silver border. The Pokémon-GX rule box follows the same format. The GX attack description is in red.