Porygon [Reverse Holo] 137 / 165 Pokemon Card 151

Conversion 4 :

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.)

In recent years, this species has been very helpful in cyberspace. These Pokémon will go around checking to make sure no suspicious data exists.