Main deck (60) 4 Arid Mesa 4 Dragon's Rage Channeler 4 Dreadhorde Arcanist 4 Expressive Iteration 1 Fiery Islet 4 Lava Dart 4 Lightning Bolt 4 Mishra's Bauble 4 Monastery Swiftspear 2 Mountain 4 Mutagenic Growth 2 Preordain 2 Prismatic Ending 2 Sacred Foundry 4 Scalding Tarn 4 Soul-Scar Mage 3 Steam Vents 3 Unholy Heat 1 Wooded Foothills Sideboard (15) 4 Flusterstorm 1 Invasive Surgery 1 Jegantha, the Wellspring 3 Path to Exile 2 Prismatic Ending 4 Shattering Spree