Giant's Boulder

Its scry 2 is useful, but paying {1} to filter mana is not ramp; it is weaker than Riverchurn Monument and needs artifact synergies to justify a slot.

Could be wrong if A strong revealed-or-unrevealed Standard artifact sacrifice shell could make its cheap body and late removal materially better.

Unlike Soul-Guide Lantern or Unlicensed Hearse, Boulder has no efficient disruptive job. Scrying and net-zero fixing are unlikely to earn a card in Pioneer.

Could be wrong if A credible artifact tutor or sacrifice deck could value a one-mana artifact with built-in late-game utility.

It is a possible one-mana toolbox target, but does far less immediately than Mishra's Bauble, Soul-Guide Lantern, or other modern utility artifacts.

Could be wrong if If a competitive artifact shell specifically needs a Saga-fetchable colored-mana converter, its floor could prove acceptable.

Legacy demands substantially more than scry 2 and net-zero fixing from a one-mana artifact; the eight-mana removal mode is far too slow.

Could be wrong if A niche artifact-tutor shell could use it as a singleton, though existing zero- and one-mana artifacts are much more efficient.

Artifact and fixing utility give it a plausible slow-deck role, but it lacks the card flow of Ichor Wellspring or Lembas and its removal mode costs eight total mana.

Could be wrong if Pauper artifact-sacrifice density and the actual post-release speed could make its cheap artifact body more or less valuable.

It is not a mana rock because activation costs mana, but artifact-recursion decks can use its scry and eventually cash it in for universal removal.

Could be wrong if Optimized lists may find the effect too low-impact versus real ramp and cheaper flexible interaction.

Scry 2 and color conversion are reasonable smoothing, while an eight-mana eventual answer is real upside; it remains a low-impact card when mana is already stable.

Could be wrong if Unknown fixing, speed, and artifact payoff density determine whether it is useful smoothing or replaceable filler.