Ignite a Burning Spirit of Battle! Searing blue flames rip across a dark battlefield as Mega Charizard X ex soars up and looks down upon its opponents! With a deep chill to rival the heat, the shadowy figure of Mega Gengar ex slowly rises into view, and both Pokémon prepare to attack. Determined to prove their mettle, Mega Heracross ex, Mega Lopunny ex, and even more Pokémon line up to give it their all in the Pokémon TCG: Mega Evolution— Phantasmal Flames expansion!

This release showcases Swordsmith Village Arc heroes like Tanjiro, Nezuko, Muichiro, and Mitsuri, with a high-rarity lineup featuring iconic story moments to recreate the arc's emotional intensity, and includes previously Japan-exclusive promo cards of Nezuko, Akaza, and Kyojuro Rengoku for wider accessibility, all brought to life through simple gameplay that captures Demon Slayer’s fierce battles and signature moves.

Starring "LLENN", "Fukaziroh", "Pitohui", "M", and other 'Squad Jam' rivals, such as the Amazons group "SHINC", gun your way to victory in Weiß Schwarz, using weapons such as "P-chan", "Suitcase", "Smokescreen", and many more, with multiple cards that strengthen the previously released Trial Deck+, and where every pack has a chance to contain a sign card by voice cast members Tomori Kusunoki (as LLENN), Yoko Hikasa (as Pitohui), and Chinatsu Akasaki (as Fukaziroh), while noting that SEC, SP, and GGR cards will have hot stamped silver print, and that these cards may be used together with cards whose numbers begin with「GGO/」 in Neo-Standard deck construction.