Null Rodutility$119.76This is the closest noncreature analogue to Collector Ouphe, shutting off activated abilities of artifacts entirely. It fills the same hatebear role with a broader card type and identical disruption pattern.
Stony SilenceutilityBudget$1.36Another classic artifact-suppression piece that prevents artifact activated abilities, playing the same hate role in white. It is often stronger in enchantment-centric decks and harder to creature-remove.
Karn, the Great Creatorutility$13.20Karn doesn't stop artifact abilities globally, but it functionally shuts off opposing artifacts in a similar prison role and can turn off mana rocks. It also adds toolbox utility, making it a stronger but pricier alternative.
ManglehornutilityBudget$0.88A green artifact-hate creature that slows artifact decks by making their artifacts enter tapped and gives a one-sided Null Rod-like pressure over time. It fits the same disruptive creature slot in midrange and Commander.
Reclamation SageremovalBudget$0.19Not a static lock piece, but it is a common green creature answer to artifacts and enchantments that occupies a similar utility slot. It provides immediate interaction instead of ongoing suppression.
Bane of Progressremoval$3.87This is a much larger green punishment card for artifact-heavy decks, wiping artifacts and enchantments when it enters. It serves the same anti-artifact game plan, but as a sweep rather than a lock.
Roots of LifeutilityBudget$0.35While not directly about artifacts, it is a green hate card that can function as a narrow prison piece in certain metas. Included as a budget-style disruptive alternative in the same color identity.
Seeds of Innocenceremoval$5.95A cheap green artifact sweeper that heavily punishes artifact-based decks, especially in metas full of mana rocks. It doesn't lock abilities like Collector Ouphe, but it performs a similar anti-artifact role.