Dispossess

A surgeon's tool, and the surgery is total. Extraction effects are a black staple: name a card, then reach across hand, library, and graveyard at once and exile every copy. What sets this one apart from the general-purpose versions is the constraint that pays for its reach. It only names an artifact. Against a deck leaning on a key artifact, that narrowing turns decent hand disruption into deletion: no replaying it from the yard, no drawing into the second copy, no tutoring it back. The cost is that the spell reads as blank text whenever the opponent is not built around a particular artifact, and it does nothing at all against a card that has already resolved and is sitting in play. The naming clause is the lever the whole effect turns on, but a miss is not a wasted turn: the search reveals the opponent's hand and library before they shuffle, so even a whiff on the main job buys you a full read on the pieces you could not see. That binary quality is the design point. A correct read earns a clean, permanent answer to their engine; a wrong one costs only a slower, information-rich turn. A total answer to a specific artifact, in exchange for being close to dead against everything else.