Jund Sacrifice wants to chain small creatures and sacrifice payoffs like The Sackville-Bagginses and Obsessive Pursuit into overwhelming value, so Duress strips their noncreature engine pieces or removal before they can set up. The extra Requiting Hex is efficient against their glut of creatures with mana value 2 or less like Callous Inspector and Gene Pollinator. Nowhere to Run underperforms since Rottenmouth Viper at 6/6 survives -3/-3 while key threats like Biotech Specialist and The Sackville-Bagginses are already answered better by Requiting Hex, and Together as One is too slow against their steady low-cost curve.