Chromatic Starramp$0.33Very close functional twin: it fixes mana for one mana and replaces itself when it goes to the graveyard. It is often preferred in sacrifice and artifact-synergy decks.
Springleaf Drumramp$0.34Provides cheap color fixing for one mana and helps enable early development. It does not draw a card, but fills a similar role in low-cost mana smoothing.
TerrarionrampBudget$0.12A one-mana artifact that filters into any colors and replaces itself on sacrifice. It is slightly slower to use, but serves the same fixing-plus-cantrip role.
Mishra's Baublecard_draw$12.88A free cantrip artifact that fuels artifact count and replaces itself. It does not fix mana, but is a similar cheap utility artifact for decks wanting zero- or one-mana value.
Urza's Baublecard_draw$6.97Another zero-mana replace-itself artifact that supports graveyard and artifact synergies. It lacks mana fixing, but overlaps in being a cheap cycler-style artifact.
Prophetic PrismrampBudget$0.08A cantrip artifact that fixes mana more broadly by adding colored filtering. It costs more, but it is a common upgrade for decks wanting repeated color smoothing.
Ichor Wellspringcard_draw$0.97A low-cost artifact that replaces itself and is valuable in sacrifice-focused shells. It does not fix mana, but it shares the sacrifice-and-draw utility pattern.
Experimental Synthesizercard_draw$0.30A one-mana artifact that provides card advantage while being useful in sacrifice or blink strategies. It does not mana-fix, but it fills a similar cheap cantrip artifact slot.