Description, catalog fields, rules text, and how it plays—in one place.
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This card stays in play after being played. Discard this card if another Stadium card comes into play. Whenever a player plays a Trainer card other than a Stadium card, he or she flips a coin. If heads, that player plays that card normally. If tails, the player can't play that card. If the card isn't put into play, the player's opponent may use that card instead, if he or she does everything required in order to play that card (like discarding cards). Either way, the card goes to its owner's discard pile.
Abilities, attacks, weakness & resistance
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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Chaos Gym (gym2-102, Unlimited) is a Stadium Trainer from the Gym Challenge set. While in play, it forces a coin flip whenever any player attempts to play a non-Stadium Trainer: heads lets that player resolve the Trainer normally and tails prevents the play and may allow the opponent to use the card before it goes to its owner's discard pile. This printing is a Rare featuring art by Keiji Kinebuchi.
Catalog pricing data as of 14 Apr 2026, 14:35