Mono Red Madness is entirely red, so Pyroblast and Blue Elemental Blast are dead weight here and should stay home; against your own errant instincts, resist boarding them in. Instead lean on your existing Skred and Fiery Cannonade to clear Kessig Flamebreather, Guttersnipe, and Voldaren Epicure before they trigger. Spell Pierce is weak since their spells are cheap and they play around it easily, and Murmuring Mystic's 1/5 body is fine on defense but you need more interaction than tokens against a fast burn plan, so trim one copy. Prioritize surviving to Tolarian Terror and Skred while using Counterspell on their key payoff creatures.