This is a mirror-style race where card advantage and cheap disruption matter more than slow value engines. Cast into the Fire kills Voldaren Epicure outright and can pick off small threats early, while Duress strips a key piece like Fiery Temper or a Faithless Looting before it can fuel their damage engine. Highway Robbery and Alms of the Vein are too slow when both decks are racing to close the game before turn 5-6. Keep your own burn suite (Lightning Bolt, Fiery Temper, Chain Lightning) fully intact since you need to match their clock and can also snipe Guttersnipe or Kessig Flamebreather with it.

Red Elemental Blast is excellent here, countering Counterspell, Brainstorm, or any other blue spell, or destroying a resolved Delver of Secrets, Tolarian Terror, or Cryptic Serpent. Extract a Confession forces them to sacrifice their biggest threat, hitting an unprotected Tolarian Terror or Cryptic Serpent since it isn't a targeted effect and dodges their permission entirely. Alms of the Vein and Vampire's Kiss are too passive against a deck racing you with efficient threats and card selection, so trim them for proactive disruption. Keep your removal spells to answer Delver of Secrets and stay ahead on tempo.

Tron relies on a suite of mana and value artifacts like Expedition Map, Bonder's Ornament, and Giant's Boulder, and Cast into the Fire can exile any of these to disrupt their ramp or value engine. Nihil Spellbomb doesn't stop their gameplan directly but can still exile a graveyard if they use Crop Rotation loops or recur threats, and it cantrips when it dies so it's low-cost to include. Alms of the Vein and Vampire's Kiss are too slow against a deck that can eventually deploy Bramble Wurm or Nyxborn Hydra as a huge blocker, so prioritize proactive damage and artifact disruption instead. Keep your burn spells ready to close the game quickly before Tron assembles its full mana base.