Rise of the Witch-king

The symmetry is the trick. Edicts have always been a Golgari specialty because black wants to strip a board and green wants to trade resources for permanence, but the standard edict is a one-way tax: everyone loses a creature, and you eat the same cost you impose. What makes this design worth its four mana is the rider that only fires for the player who paid: if you sacrificed a creature to your own spell, you get to reanimate a permanent from your graveyard. That turns a wash into a swing. You feed a token, a mana dork, or a creature already marked for the chopping block, and the payment funds the recursion; the opponent sacrifices something they cared about and gets nothing back. Note the returned card is a permanent, not a creature: an enchantment, an artifact, a land, or a planeswalker all come back too, which widens the graveyard target well past a reanimation spell's usual remit. The seam this card sits on is the one between removal and value, doing the work of Diabolic Edict and a small Regrowth-for-permanents in a single sorcery, with the sacrifice you were going to make anyway acting as the toll that unlocks the second half.