Avacyn's Collar is an Unknown rarity artifact from the Dark Ascension set of Magic: The Gathering. It provides a creature equipped with a +1/+1 boost and grants the ability to gain lifelink, making it a strategic choice in various decks. Currently valued at $0.23, it appeals to collectors and players looking for budget-friendly options to enhance their gameplay. The card's niche utility contributes to its steady presence in the secondary market.