This is the direct mirror match, so the plan is nearly identical against the same 75. Professor Dellian Fel provides repeatable removal for their Sackville-Bagginses and Rottenmouth Viper along with lifegain to offset Rottenmouth Viper's life-loss trigger, both key advantages in the mirror. Duress can strip their copy of Strategic Betrayal or Professor Dellian Fel before it lands. We trim the slower value pieces (Fanatical Offering, Mutagen Man) and one Deadly Precision since in the mirror, efficient interaction and card advantage matter more than incremental value that both players already have access to.