Gym Challenge · 116/132
Master Ball is a Trainer card from the Gym Challenge expansion of the Pokémon Trading Card Game (card 116/132, Uncommon).
Look at 7 cards from the top of your deck. You may choose a Basic Pokémon or Evolution card from those cards, show it to your opponent, then put it into your hand. Shuffle the rest into your deck.
Illustrated by Keiji Kinebuchi