Grixis Control's maindeck has no listed red cards, so Pyroblast is excellent against their blue suite: Preordain, Counterspell, Lorien Revealed, Brainstorm, Baleful Strix, Murmuring Mystic, and Spell Pierce. Hydroblast has no legal red targets here since their maindeck is blue-black, so we include only a light package and rely primarily on Pyroblast for disruption. Augur of Bolas is a weaker body against their efficient removal suite (Snuff Out, Cut Down, Cast Down), so we trim copies for more countermagic; Campfire's lifegain matters less in a long grindy control mirror decided by card advantage. Keep Counterspell, Plunder the Trollshaws, and Lorien Revealed at full strength to win the long game against their Thorn of the Black Rose and Murmuring Mystic value engines.