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Voltaic Keyutility$4.74Very close functional equivalent: a cheap artifact that untaps artifacts for repeated mana engine or combo use. It is more efficient because it costs 1 less to cast.Manifold Keyutility$1.46Another artifact untapper that can repeatedly enable mana rocks or combo pieces, with added upside of granting unblockable to an artifact creature. It fills the same utility role at a similar low cost.Unwinding Clockutility$21.01Acts as a recurring untap engine for artifacts, especially in decks built around artifact mana or tap abilities. It is slower and more expensive, but covers the same core function at scale.Kelpie Guideutility$0.27Provides repeatable untap utility for permanents, including artifacts, and can serve as a budget combo enabler. It is less efficient, but overlaps in the role of untapping key permanents.Freed from the Realutility$7.31A classic repeatable untap effect that can be used on artifact-based mana engines or combo pieces if they are creatures or otherwise targeted through supporting synergies. It plays a similar role in enabling repeated activations.Pemmin's Aurautility$11.51Similar to Freed from the Real, it is an aura-based untap engine that can repeatedly free up a tapped permanent for combo lines. It is more flexible, but requires enchanting a creature.Clock of Omensutility$6.14A strong artifact-focused untap engine that converts tapped artifacts into untaps for other artifacts, often enabling large mana or combo turns. It serves the same broad artifact-synergy utility role.Magewright's Stoneutility$9.08A low-cost untap artifact that repeatedly resets creatures, which can indirectly support artifact-combo shells or tap-ability engines. It is similar in being a cheap reusable untap tool.
