Mono Black Aggro is a creature-heavy deck (Bloodghast, Dark Matter Manipulator, Baron Helmut Zemo), and its cheap noncreature spells (Thoughtseize, Fatal Push, Bitter Triumph) make Negate a clunky, low-impact card here, so it comes out. Anger of the Gods and Brotherhood's End sweep their small creatures, but they treat Bloodghast differently. Anger of the Gods exiles any creature that would die from its damage, so a Bloodghast caught in it is gone for good. Brotherhood's End only deals damage, so Bloodghast goes to the graveyard and comes back with the next land drop. Prefer Anger of the Gods when Bloodghast is on the table. Both sweepers are still strong against their other threats like Stitcher's Supplier, Baron Helmut Zemo, and Gifted Aetherborn. Keep Fiery Impulse and Fable of the Mirror-Breaker as efficient removal and board presence against their low-toughness curve. Be mindful of Thoughtseize and Duress stripping your interaction, so prioritize proactive plays when possible.