Ante Duel

From Yu-Gi-Oh!

An ante duel is a Duel where both players stake cards of equal value, and the winner of the duel claims both cards. This is the only way to become the Owner of a card in a duel. These duels are completely optional but are forbidden in most tournaments.

In the anime and manga, these duels were more common. In the manga, ante is said to be a common rule in trading card games, and ante duels were required in the Battle City tournament. In Yu-Gi-Oh! GX, however, ante is forbidden.