Mono-White Aggro's board is full of small creatures with 1-2 toughness like Novice Inspector, Thraben Inspector, Raffine's Informant, and the Battle Screech Bird tokens, making Breath Weapon's 2 damage sweep highly effective at resetting their board for only three mana. Crop Rotation is the natural cut since this matchup is a straightforward race where proactive disruption of their wide, low-toughness board matters far more than finding a specific land. The rest of our list, including big top-end threats like Maelstrom Colossus and Bramble Wurm's lifegain, already lines up well against their aggressive but shallow battlefield. Keep the plan simple: sweep early boards with Breath Weapon and close with our larger threats before they can rebuild.