Mistral Singer appears in Magic: The Gathering’s Core Set 2021 as an Unknown rarity creature (card #58) and is currently valued at about $0.03. Collectors and casual players encounter it as a low-value pick that rarely moves prices, making it common in bulk lots and set-completion efforts. Its market niche is primarily for playsets and trade filler rather than investment. Condition and grading remain the main drivers if a higher price is realized.