Scrap Mastery

The mechanics borrow Living Death's swap and narrow it to one card type: graveyard and battlefield trade places, but only for artifacts. The sequencing is what makes it read as a value engine rather than a symmetric sweep. Exile-from-graveyard resolves first, then the live artifacts get sacrificed, then the exiled pile arrives all at once. That ordering is sharper than it looks: the artifacts you sacrifice this turn are not part of the exiled pile (they were never exiled), so they go to the graveyard and stay there. What comes back is whatever was already in your graveyard before the spell resolved. The reward, then, goes to the player who arrived with the deeper artifact graveyard, while the live board you cash in becomes next turn's fuel rather than this turn's return. The enters-the-battlefield triggers are where the payoff compounds: every artifact that returns is a fresh entry, so a graveyard full of value pieces and sacrifice fodder fires its triggers over again in a single resolution. It is a reset button dressed up as a symmetric spell, asymmetry hiding in who did the graveyard work beforehand. The price is steep and structural: a five-mana sorcery that does nothing unless your yard is already stocked, and that offers the same recursion to any opponent sitting on artifacts of their own.