Caustic Tar is an Uncommon card from the Masters 25 set of Magic: The Gathering, numbered #81. Currently valued at $0.22, it features artwork by Jung Park and fits into the game's strategy with its unique mechanics. As a staple for certain decks, it appeals to both collectors and players alike, reflecting its ongoing relevance in the market. Its moderate price point makes it an accessible addition for those looking to enhance their collections.