Description, catalog fields, rules text, and how it plays—in one place.
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Mega Evolution rule: When 1 of your Pokémon becomes a Mega Evolution Pokémon, your turn ends. Pokémon-EX rule: When a Pokémon-EX has been Knocked Out, your opponent takes 2 Prize cards.
Abilities, attacks, weakness & resistance
You may discard all Fire Energy attached to this Pokémon. If you do, this attack does 80 more damage.
Other cards from BREAKthrough
Mewtwo-EX (Holofoil)
Mewtwo-EX (Holofoil)
Giovanni's Scheme (Holofoil)
Brigette (Holofoil)
M Mewtwo-EX (Holofoil)
M Mewtwo-EX (Holofoil)
Mewtwo-EX (Holofoil)
Mewtwo-EX (Holofoil)
M Glalie-EX (Holofoil)
Glalie-EX (Holofoil)
Houndoom-EX (Holofoil)
Rainbow Energy (Reverse Holofoil)
M Houndoom-EX (xy8-154-Holofoil) is a Fire-type MEGA Pokémon-EX. Its Inferno Fang attack deals 80 base damage and may discard all Fire Energy attached to this Pokémon to do 80 more damage. As a Pokémon-EX it awards two Prize cards when knocked out, making it a high-risk attacker for aggressive Fire strategies.
Catalog pricing data as of 12 Apr 2026, 21:31
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