Nihil Spellbomb is a narrow card here: it only exiles graveyard value like Lava Dart or Faithless Looting flashbacks and Sneaky Snacker recursion, and it does nothing to the burn and creatures that actually pressure you, so cut it for proactive disruption. Duress strips Fiery Temper, Faithless Looting, or Lightning Bolt before it can be chained into a Kessig Flamebreather or Guttersnipe turn. Breath Weapon deals 2 damage to each non-Dragon creature, so it sweeps Voldaren Epicure (1/1), Guttersnipe (2/2), and Sneaky Snacker (2/1), though Kessig Flamebreather (1/3) survives it. Be careful, because it also hits your own X/1 and 2/2 creatures. It is far better than Toxin Analysis's one-turn lifelink and Clue in a race. Keep the full core engine online since this matchup is about outpacing their damage with card advantage and blockers.