Engineered Plague naming Zombie is the key asymmetry in this matchup: it destroys their Withered Wretch and Graveborn Muse while leaving every creature in your deck untouched. Funeral Charm's modes are all weak here — discard requires them to have a card in hand in a game where both decks empty hands fast, -1/-1 rarely kills anything relevant at this power level, and swampwalk is irrelevant in a mirror. Knight of Stromgald's protection from black makes your Smother, Snuff Out, and Funeral Charm unable to target it, so prioritize Diabolic Edict to force sacrifices and answer the Knight cleanly. Your Hypnotic Specter and Phyrexian Negator are faster threats than their Graveborn Muse, so apply pressure early and use Duress and Cabal Therapy to clear the way before they can stabilize.