The Obsidian Flames Half Booster Box is a streamlined release from the Pokémon TCG's Scarlet & Violet series, offering a focused selection from the Obsidian Flames expansion. This half booster box contains 18 booster packs, each with 10 cards and 1 Basic Energy, totaling 180 cards and 18 Basic Energy cards.

The Obsidian Flames expansion introduces the dazzling Terastal phenomenon, featuring type-shifted Tera Pokémon ex with crystalline appearances. Notable inclusions are Darkness-type Charizard ex, Tyranitar ex, Eiscue ex, and Vespiquen ex, among others. The set also showcases Dragonite ex, Greedent ex, Revavroom ex, and Melmetal ex, highlighting their unique strengths.