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Whenever you crank this Contraption, creatures target player controls get -1/-1 until end of turn.
Abilities, attacks, weakness & resistance
Other cards from Unstable
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Jamming Device (UST 192, foil) is a silver‑border Artifact — Contraption from Unstable. When you crank it, it gives creatures a target player controls -1/-1 until end of turn. It belongs in the Contraption deck and interacts with the Un‑set crank/sprocket rules rather than normal battlefield artifact play.
Catalog pricing data as of 22 Apr 2026, 11:51
