Description, catalog fields, rules text, and how it plays—in one place.
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In recent years, this species has been very helpful in cyberspace. These Pokémon will go around checking to make sure no suspicious data exists.
Abilities, attacks, weakness & resistance
Choose Grass, Fire, Water, Lightning, Psychic, Fighting, Darkness, Metal, or Dragon type. Until the Defending Pokémon leaves the Active Spot, its Weakness is now that type. (The amount of Weakness doesn't change.)
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Mew ex (Holofoil)
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Porygon (137/165, sv3pt5-137 Reverse Holofoil) is a Colorless Basic Pokémon from the 151 expansion. Its Conversion 4 attack lets you set the Defending Pokémon's Weakness to one of nine listed types until that Pokémon leaves the Active Spot. Because the attack deals no damage and costs a single Colorless energy, the card is primarily used to manipulate opponent matchups instead of dealing direct damage.
Catalog pricing data as of 14 Apr 2026, 19:16