Main deck (60) 4 Ancient Tomb 3 Basalt Monolith 4 City of Traitors 1 Ghirapur Aether Grid 4 Great Furnace 4 Grim Monolith 4 Karn, Scion of Urza 4 Karn, the Great Creator 4 Lion's Eye Diamond 4 Lotus Petal 4 Manifold Key 5 Mountain 4 Mox Opal 4 Mystic Forge 4 Serum Powder 3 Walking Ballista Sideboard (15) 3 Abrade 1 Ensnaring Bridge 1 Ghirapur Aether Grid 1 Liquimetal Coating 2 Mindbreak Trap 1 Mycosynth Lattice 1 Sorcerous Spyglass 3 Tormod's Crypt 1 Walking Ballista 1 Zirda, the Dawnwaker