This is the exact mirror image sacrifice matchup, so it comes down to grinding value and removing key threats. Professor Dellian Fel's -3 kills their best creatures (Umbral Collar Zealot, Magda) and the +2/0 modes help you stabilize and out-value their card draw engines. Duress preemptively strips their own Strategic Betrayal or Professor Dellian Fel before they can deploy it. Requiting Hex is weaker here since most of their key threats (Sackville-Bagginses, Biotech Specialist) are mana value 2 or under but Deadly Precision's extra cost is often too slow against another aggressive sac deck, so we trim the more conditional removal for higher-impact planeswalker value and disruption.