Chainer's Edict is a uncommon Sorcery card from Torment (TOR), collector number 57. Current market price: $1.51 (foil $20.27), TCGplayer market prices via Scryfall.
Target player sacrifices a creature of their choice. Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)