name: Oath of Ghouls
originalText: During each player's upkeep, if there are more creature cards in that player's graveyard than in target opponent's graveyard, the player may return a creature card from his or her graveyard to his or her hand.
printings: EXO
text: At the beginning of each player's upkeep, that player chooses target player whose graveyard has fewer creature cards in it than their graveyard does and is their opponent. The first player may return a creature card from their graveyard to their hand.