# Prey Upon Prey Upon is a straightforward green combat trick that lets one creature fight another. As a common from Duel Decks: Heroes vs. Monsters, it's primarily a limited utility card rather than a constructed staple. Collectors view it as part of the broader ecosystem of fight mechanics in Magic, a category that has grown steadily over time. The card's appeal lies mainly in its functional role within sealed products rather than any particular scarcity or uniqueness. Since it's a common with only nonfoil printing in this set, it holds minimal collector premium. Most interest comes from players completing Duel Decks sets or those building green decks that value efficient creature removal.