Weathered Runestone

Graveyard hate usually attacks the yard directly: exile it, shuffle it away, tax it. This takes the opposite route by fencing off the exits. Instead of touching what is already in the graveyard, it locks the door those cards would walk through, shutting down every path a nonland permanent might take to the battlefield from a graveyard or library, and switching off the whole class of "cast from an off-battlefield zone" effects at once. That framing gives it unusual breadth for a two-mana artifact answer to reanimation and library-cast strategies: it does not care whether the enabler is a targeted return, a mass reanimation, an escape mechanic, or a cast-from-the-top engine, because it never engages with any single card. It engages with the zones. The cost of that width is its indifference to symmetry: it hits both players equally, so anyone running it is either playing a shell that ignores its own graveyard and top-of-library or accepting that the prison shuts off some of their own options too. That is the tension this kind of static lock has always carried, from the artifact prison pieces of earlier eras onward: the flatter and more comprehensive the effect, the less it can distinguish friend from foe. What it offers in exchange is a single permanent that quietly deletes an entire category of engine, and stays on the board doing it until someone answers the artifact itself.