# Demon's Horn Demon's Horn is a straightforward colorless artifact from Duels of the Planeswalkers that rewards black-heavy strategies. The card gains you one life whenever an opponent casts a black spell, making it a modest defensive tool in limited environments where black decks cluster together. Collectors appreciate it primarily as a set completion piece rather than a sought-after card. Its uncommon rarity and functional simplicity mean it rarely commands attention in the secondary market. The nonfoil-only printing keeps variants minimal, so there's little to chase beyond owning a copy. It represents the kind of solid, unspectacular utility card that defined that era of Magic's supplemental products.