Description, catalog fields, rules text, and how it plays—in one place.
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Abilities, attacks, weakness & resistance
If the Defending Pokémon tries to attack during your opponent's next turn, your opponent flips a coin. If tails, that attack does nothing.
Flip a coin. If heads, shuffle Koga's Koffing and all cards attached to it into your deck (after doing damage).
Other cards from Gym Challenge
Water Energy (Unlimited)
Water Energy (First Edition)
Psychic Energy (Unlimited)
Psychic Energy (First Edition)
Lightning Energy (Unlimited)
Lightning Energy (First Edition)
Grass Energy (Unlimited)
Grass Energy (First Edition)
Fire Energy (Unlimited)
Fire Energy (First Edition)
Fighting Energy (Unlimited)
Fighting Energy (First Edition)
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Koga's Koffing (gym2-48 Unlimited) is a Basic Grass-type Pokémon from the Gym Challenge set illustrated by Ken Sugimori. Its Smokescreen attack can force the opponent to flip a coin to determine if their Defending Pokémon's next attack does nothing, and Obscuring Gas deals 30 damage with a coin flip that can shuffle Koffing and its attachments back into your deck after damage. The card has a Colorless retreat cost and a Psychic weakness, giving it modest mobility and vulnerability consistent with its Uncommon rarity.
Catalog pricing data as of 24 Apr 2026, 12:52