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
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Water Energy (First Edition)
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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 (Gym Challenge 102, First Edition) is a Stadium Trainer card that remains in play until another Stadium replaces it. Whenever a player attempts to play a non-Stadium Trainer, they must flip a coin and on tails cannot play it, and the opponent may play that Trainer instead if they meet its requirements, after which the card goes to its owner's discard pile. This card changes both players' access to Trainer effects, making it a disruptive card that can swing turns by denying or transferring plays.
Catalog pricing data as of 21 Apr 2026, 01:14