Collector Ouphe

Where Null Rod put artifact-hosing on a colorless permanent that mostly sat there, this hangs the same shutdown on a green two-drop with a body worth attacking behind. That reframing is the whole point. A 2/2 for two means the effect arrives on a card that pressures the opponent while it denies them, so the tax you impose is not the only clock in play. The lock itself is total within its lane: mana rocks stop tapping, equipment stops re-equipping, treasures stop cracking, planeswalker-adjacent artifact engines seize. What it deliberately leaves alone is the ceiling of the card, and it matters that you read the line precisely: this touches only activated abilities of artifacts, not their triggered abilities, not artifact spells resolving, not enchantment or creature engines. An opponent's artifact-based combo built on activation folds; one built on cast triggers or static effects walks right past. The design lives in that gap. Green rarely gets to interact with artifacts on the stack at all, and the Ouphe creature type has long been green's slot for spiteful, artifact-hating fair-magic answers going back to Gorilla Shaman's era of "your rocks don't work today." This is that lineage compressed into a creature small enough to die to anything, which is the trade: the hoser is fragile precisely because the ability it carries is so absolute. Kill it and everything unlocks at instant speed, so the pressure runs both directions.