Witch's Oven

A sacrifice outlet and a value engine usually pull in opposite directions: outlets want to be free and repeatable, but repeatable death for value is a combo the moment it exists. This design splits the difference by taxing the loop with a tap symbol, so it converts one creature per turn and no more, and by handing back a Food rather than a card or a direct benefit. That Food is a deferral: it stores the value as a fragile artifact you still have to spend mana and a tap to cash in, which throttles the exchange down from a machine gun to a slow drip. The toughness-4 clause is the real design tell, a quiet nudge toward sacrificing something chunky rather than the disposable one-drops the card would otherwise farm. What gives it lasting significance is the partner that returns to the battlefield: pair the Oven with a creature that comes back each turn and you get an engine that recurs a body, banks Food, and generates a repeatable trigger every upkeep, all off two cheap permanents. That pairing turned a modest one-mana artifact into the anchor of one of the more durable value shells of its era, the kind of two-card interaction that looks unremarkable on each half and quietly warps a format when both halves sit on the table together.