Crimson Haze ( 強化拡張パック クリムゾンヘイズ) is a subset of the Pokémon Trading Card Game (TCG), released in Japan on March 22, 2024. This set is part of the Scarlet & Violet Era, and is intended for use in Sealed-format tournaments, in which players build decks using only cards obtained from Sealed products during the event.

Pokémon and characters from the land of Kitakami that were introduced in "The Teal Mask," the first downloadable content for the Pokémon Scarlet and Violet video games, make a strong appearance in the expansion. The focal point of the entire set is the Pokémon Bloodmoon Ursaluna. In addition, Crimson Haze continues to introduce ACE SPEC cards to the TCG format.

Each Crimson Haze booster pack contains five cards, and the set includes reprints of core trainer cards such as Switch and Pokémon Catcher to support the creation of powerful decks.

The Crimson Haze expansion enriches the TCG by introducing new Pokémon and mechanics from the Kitakami realm, offering players new strategies and deck-building options.