
Gym Challenge · #50
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Abilities, attacks, weakness & resistance
Flip a coin. If heads, this attack does 10 damage plus 30 more damage and Koga's Weezing does 30 damage to itself; if tails, this attack does 10 damage.
Flip a coin. If heads, the Defending Pokémon is now Poisoned. It now takes 20 Poison damage instead of 10 after each player's turn (even if it was already 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 Weezing (gym2-50 First Edition) is a Grass-type Stage 1 Pokémon from the Gym Challenge set. It has Spontaneous Explosion, which does 10 damage or 40 on a heads but deals 30 recoil to itself, and Toxic Cloud, which can Poison the Defending Pokémon to cause 20 poison damage per turn if the coin flip succeeds. The card is Uncommon, weak ×2 to Psychic, and requires two Colorless to retreat, affecting its survivability in battle.
Catalog pricing data as of 15 Apr 2026, 07:39