From Bulbapedia, the community-driven Pokémon encyclopedia.
Gambler (Japanese: ギャンブラー Gambler) is a Trainer card. It is part of the Fossil expansion.
| Shuffle your hand into your deck. Flip a coin. If heads, draw 8 cards. If tails, draw 1 card.
A Gambler was a type of Trainer in the Generation I Pokémon games; they have since been renamed.