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If this Baby Pokémon is your Active Pokémon and your opponent tries to attack, your opponent flips a coin (before doing anything else required in order to use that attack). If tails, your opponent's turn ends without an attack.
Ability
Gaze: Once during your turn (before you attack), choose 1 of your opponent's Benched Pokémon that has a Pokémon Power. That power stops working until the end of this turn. This effect ends if that Pokémon leaves the Bench. (Pokémon Power)