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As this artifact enters, choose a watermark. Creatures you control with the chosen watermark get +1/+1.
Abilities, attacks, weakness & resistance
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Stamp of Approval (UST 160, foil) is an Unstable silver‑border artifact that enters the battlefield and asks you to choose a watermark. It grants creatures you control that have the chosen watermark +1/+1, making it a narrow anthem effect that depends on a specific watermark being present on your creatures. Unstable set debut (a silver-bordered, humorous supplemental Magic set).
Catalog pricing data as of 22 Apr 2026, 14:16
