Steadfast Sentry appears in Magic: The Gathering’s Core Set 2020 as an Unknown rarity creature card that offers basic defensive utility for casual white decks. Collectors and budget players typically view the card as a low-value common piece, reflected in its current market price of $0.03. Its presence in a widely distributed core set keeps supply steady, so demand-driven price movement is uncommon. Condition and grading can be relevant for sellers aiming to extract any premium.