Cogwork Archivist

Graveyard hate that never quite closes the door is a peculiar niche, and this is a clean specimen of it. The activated ability sends a single card to the bottom of its owner's library, not exile: a delay rather than a removal, resetting a delve engine or a flashback plan for a turn or two rather than dismantling it. That distinction is the whole character of the effect. It taxes recursion without collapsing it, and the recurring cost means it works one card at a time, at the tempo of a slow drip. Wrapped around a 4/5 with reach, the body is doing the real work of justifying the six mana: it blocks fliers, survives most red removal, and holds a corner of the board while the tap ability does incidental disruption. This is the sort of design that shows up when a set wants graveyard interaction available to any color: colorless, artifact-bodied, and modest enough that it never warps the incidental-hate math the way exile-based answers do. It asks nothing of your deck and offers nothing spectacular in return, which is precisely the point of a card built to be a reasonable body first and a soft answer second.