Inferno X (Japanese: インフェルノ X) is the second main expansion of the Japanese MEGA Series (set code M2) for the Pokémon Trading Card Game, released on September 26, 2025. The set is themed around Fire-type dominance and the return of Mega Evolution mechanics, featuring Mega Charizard X ex as its mascot.

Release Date: September 26, 2025 (Japan).

Set Size: 80 base cards plus secret rare variants (116 cards total to collect).

Booster Box Configuration: 30 packs per box, with 5 cards per pack.

Mega Charizard X ex (SAR/MA): The top chase card of the set, featuring a "Mega Attack" secret rarity (MA) with bold Japanese lettering across the artwork.

Mega Sharpedo ex: A Water/Dark dual-type card that offers aggressive offensive strategies.

Mega Lopunny ex & Mega Heracross ex: Additional Mega Evolution entries for the series.

Zacian (Illustration Rare): Highly sought after for its detailed full-art illustration.

New Trainers: Includes the supporter Firebreather (searches for 7 Basic Fire Energies) and Grimsley’s Gambit.