Red Elemental Blast is excellent here, countering Counterspell/Foil/Stifle/Gush, all classic blue targets. Overload can destroy the Phyrexian Dreadnought (mana value 1) outright in response to its sacrifice ability, a clean answer to their whole game plan. Pyrostatic Pillar and Black Vise are cut since our cheap spells will ping us as well and Black Vise does little against a deck that keeps a light hand. Ensnaring Bridge is effective since a 12/12 Dreadnought will usually exceed our hand size, so bring a couple as a backup plan when we're not the beatdown.

This is the mirror, so Red Elemental Blast is dead since neither side casts blue spells — do not board it in. Instead the mirror is decided by who has the better burn and removal package and who lands Black Vise/Price of Progress first, so add the extra Price of Progress since both decks run heavy nonbasic lands (Mishra's Factory). Pyrostatic Pillar is symmetrical and actively bad since we both run cheap spells constantly, so cut it. Keep Fireblast and Incinerate as premium removal for their Grim Lavamancer and Mogg Fanatic.

This matchup is a race against their card-advantage engine, so Sulfuric Vortex is excellent since it clocks them every upkeep and shuts off any incidental lifegain. Anarchy sweeps their white permanents outright, wiping Solitary Confinement, Opalescence, Parallax Wave, and Sterling Grove in one shot. Price of Progress is weak here since their manabase leans heavily on basics and fetches that become basics, so it comes out; Mogg Fanatic's 1 damage doesn't productively trade with their 0/1 Argothian Enchantress under its own shroud anyway, and its board presence does little against a control deck with few real threats.