Grim Reaper's Scythe

Reanimation usually thinks in one direction: a card leaves the graveyard, a body arrives, and the graveyard is that much thinner. This artifact turns the second half of that transaction into its own payoff. The trigger fires on creature cards leaving your graveyard for any reason (the reanimation clause here, but also any other exile or recursion effect that pulls creatures out), and each such event prints a 2/2 Zombie. That coupling is the design idea: it taxes the graveyard for material while paying you back in tokens, so a deck built around it wants to churn the yard rather than hoard it. The activated ability is where the discipline lives. Four mana, a tap, and two creatures sacrificed to return one from the graveyard, with a finality counter riding along, means every reanimation is a one-shot: the returned creature exiles instead of dying, so you cannot loop it back for a second trip. That counter is what keeps the sacrifice-and-return line from spiraling. The two halves are more sequential than simultaneous: reanimating a single creature triggers the front end once for one Zombie, not the pair the activated cost demands, so you still need an outside body pipeline to keep the sacrifice fueled. The sorcery-speed restriction closes off combat trickery and forces the whole sequence onto your own turn. What you end up with is a self-feeding aristocrats value piece that wants a full graveyard, a way to empty it, and a steady appetite for fodder, and rewards all three at once.