Chill meaningfully taxes their red curve. Nearly every spell they cast is a red Goblin, so Goblin Warchief, Siege-Gang Commander and the rest of their creatures come down two mana later than they want. Hydroblast is a cheap answer to the same red threats. It can counter a red Goblin spell or destroy a red Goblin on the battlefield, but it cannot target Goblin Piledriver once that creature is on the battlefield because of its protection from blue. Overload stays in the sideboard. Their deck has no artifacts to target, so it has no legal targets in this matchup. Annul is also dead, since they cast no artifact or enchantment spells. That makes this a four-card swap: Chill and Hydroblast come in for Black Vise and one Thwart. Vise does little against an aggressive deck that empties its hand quickly, and Thwart is too slow and clunky here. Stasis remains a powerful stabilizer once established. Their creatures stop untapping, so only freshly cast Goblins, especially hasty ones off Goblin Warchief, can attack, and each of those gets only one attack.

Annul counters Phyrexian Dreadnought or Powder Keg, since both are artifact spells, so it stops their key threats before they land rather than after. It cannot touch their blue spells such as Vision Charm, Stifle or the counterspells, so don't expect it to do more than answer those artifacts. Thwart is clunky against their counterspell-dense gameplan where you'd rather be proactive with cheap interaction, so it makes room for the extra Annuls. Fire/Ice stays in as a flexible tempo tool. Keep Daze in to tax their Dreadnought or other key spells, and keep Chain of Vapor in to bounce a Dreadnought that resolves. Stasis remains your long-game lock once their threats are neutralized.

Annul is a strong answer here, countering Opalescence, Parallax Wave, or Attunement before the combo locks you out. It only hits artifact and enchantment spells, so Replenish (a sorcery) has to be handled by your other counters like Counterspell and Daze. Hydroblast has no red targets in this matchup, since the opponent plays no red cards, so it stays in the sideboard. Thwart is awkward here, since its alternate cost means returning three Islands and its hard cost is four mana, so cut it for proactive answers. Stasis is still a core piece of the plan, since skipping untap steps keeps them from rebuilding their mana after Replenish resolves.