Dimir Control plays almost no early creatures worth sweeping, making Day of Judgment largely dead weight against their own Jace Beleren and counterspell-heavy plan, so bring it down for proactive threats. Tishana's Tidebinder can flash in to counter a loyalty ability of their The Theorist, Jace Beleren, and because Jace is a planeswalker it then loses all abilities (including the extra draw each turn) for as long as Tidebinder stays on the battlefield. It's also a real body, and at mana value 3 it dodges Requiting Hex, though it still dies to Deadly Cover-Up and their spot removal. Wan Shi Tong is a flash flier that draws cards off its X, which is strong in a counterspell-heavy grind; its search trigger will rarely matter here, since their manabase has almost no searching beyond a single Demolition Field. Erode also hands them a basic land, so trim it for more impactful threats.