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Abilities, attacks, weakness & resistance
If your opponent has any Benched Pokémon, flip a coin. If heads, choose 1 of your opponent's Benched Pokémon and switch it with the Defending Pokémon. The new Defending Pokémon is now 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 Grimer (gym2-78 First Edition) is a Grass-type Basic Pokémon from the Gym Challenge set with common rarity. It has Sludge Grip, which can force an opponent to switch a Benched Pokémon into the Active spot and Poison it on a successful coin flip, and Sludge Toss that deals 20 damage. Its role is a low-cost attacker and disruptive tech with Psychic weakness and a one Colorless retreat cost.
Catalog pricing data as of 29 Apr 2026, 09:05