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Thousand-Year Elixirutility$14.81It enables repeated activated abilities by untapping creatures and effectively giving them haste, which overlaps with Manifold Key's utility-untap role. It also functions as a combo enabler in artifact-based decks.Voltaic Keyutility$4.74This is the closest direct analogue: a cheap artifact that untaps another artifact for a low activation cost. It is the most efficient budget and combo-oriented substitute for the untap mode.
