Mono Black Aggro relies on a swarm of small bodies (Bloodghast, Stitcher's Supplier, Gifted Aetherborn) that die outright to Anger of the Gods, which also exiles Bloodghast to stop its recursion from landfall. Abrade is efficient removal for Gifted Aetherborn or Dark Matter Manipulator before it grows too large. Traumatic Critique and Winternight Stories are too slow against their proactive low curve and vulnerable to Thoughtseize stripping your hand. Keep Fiery Impulse and Stubborn Denial as cheap, efficient answers, and be mindful Sheoldred, the Apocalypse (if sideboarded in) punishes your card draw heavily.