Toxic Deluge and Massacre both answer their go-wide plan of Stoneforge Mystic, Recruiter of the Guard, and token generators, wiping the board of their small creatures. Massacre is completely free for us since we run Swamps and they run Plains, letting us sweep for zero mana. Underground Mortuary's tapped land downside is risky against their Wasteland and Thoughtseize-backed tempo plan, and Pithing Needle has fewer relevant targets since most of their threats are static or ETB-based rather than activated. Keep Fatal Push and Orcish Bowmasters to trade with their early creatures like Phelia and Stoneforge Mystic before sweepers come online.