UPDATED FOR AMONKHET
Using the most efficient creatures and burn spells Frontier has to offer, paired with the card drawing power of Treasure Cruise to find more gas.
Shivan Reef could be Spirebluff Canal, but the painland brings more synergy with Gonti's Machinations, which is an absurdly powerful burn spell.
Three each on Soul-Scar Mage and Thermo-Alchemist because you want to see them early, but not necessarily often. If you shave an Alchemist, you might as well drop them entirely. Maybe for Abbot of Keral Keep.
Sideboard Choices:
Tainted Remedy: Lifegain is always the bane of Burn. This turns it into a win-con. Most often used against Rally decks, but good against a lot of random lifegain.
Fevered Visions: Comes in against any control decks or midrange that's just looking to play on curve. Basically anything that doesn't dump it's hand faster than you. At the very least it stops you from running out of gas, which is always a risk for Burn. At best it just wins the game on it's own.
Hungry Flames: When three damage kills a lot of creatures, this always comes in.
Self-Inflicted Wound: Anything playing green or white creatures doesn't like this. Sure, it'll always get their worst, but it can still swing a race.
Smash to Smithereens: Anything relying on artifacts. Bonus points if you destroy a Felidar artifact token and kill a Saheeli with it.
Collective Brutality: The drain is always good, especially against aggro. And you can pitch a spare land to remove a little guy against aggro or Duress against control.
Hope of Ghirapur: For combo decks, like Aetherflux Storm.
Everything keeps the damage flowing with upside against something.
