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Abilities, attacks, weakness & resistance
Flip 2 coins. If both are heads, the Defending Pokémon is now Confused and Poisoned.
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 Ekans (gym2-77 First Edition) is a Basic Grass-type Pokémon from the Gym Challenge set and appears as a common card. Its single attack, Fast-Acting Poison, deals 10 damage and can Confuse and Poison the Defending Pokémon if you flip two heads. The card has a single Colorless retreat cost and a ×2 weakness to Psychic, defining its simple tactical role in low-cost early-game plays.
Catalog pricing data as of 28 Apr 2026, 23:29