Boros Moxite leans on artifacts like Melded Moxite, Ragged Short Spear, and various artifact lands, making Dust to Dust a strong two-for-one to strip their key value pieces. Skred is serviceable against their small creatures (Thraben Inspector, Kor Skyfisher, Glint Hawk) but Dust to Dust attacks their actual engine more directly, so we trim Skred slightly rather than core removal like Counterspell. Ethereal Haze can blank a Rally the Peasants-fueled alpha strike entirely. Keep Counterspell and Murmuring Mystic online since this is still a fair creature fight you can out-card-advantage.