Boros Control attacks your mana base through Cleansing Wildfire, Demolition Field, and Field of Ruin while leveraging White Orchid Phantom as a recurring threat and Wrath of the Skies to punish creature-based gameplans. Consign to Memory is the cornerstone of the post-board configuration — a one-mana instant that efficiently answers their removal, sweepers, and activated abilities before they can resolve. Force of Vigor destroys key enchantments like Erode and The Legend of Roku for free, while Chalice of the Void set on one blanks Path to Exile, Reprieve, and Galvanic Discharge simultaneously. Culling Ritual sweeps their low-cost enchantments and generates a significant mana burst to accelerate your position, and the third Harbinger of the Seas compounds pressure on their non-basic-heavy mana base of Sacred Foundry, Cori Mountain Monastery, and Sunken Citadel. Abhorrent Oculus is your premier threat because it generates recurring value that their targeted removal cannot permanently answer, so prioritize protecting it with Flare of Denial and Force of Negation.