Main deck (60) 4 Ancient Tomb 4 Cavern of Souls 4 Chalice of the Void 4 City of Traitors 1 Engineered Explosives 5 Island 1 Karakas 4 Karn, Scion of Urza 4 Karn, the Great Creator 4 Lotus Petal 4 Mox Opal 1 Pithing Needle 4 Seat of the Synod 1 Tormod's Crypt 4 Trinket Mage 4 Urza, Lord High Artificer 3 Urza's Bauble 3 Walking Ballista 1 Welding Jar Sideboard (15) 1 Basilisk Collar 3 Defense Grid 1 Engineered Explosives 3 Ensnaring Bridge 1 Grafdigger's Cage 1 Liquimetal Coating 1 Mycosynth Lattice 1 Sorcerous Spyglass 1 Tormod's Crypt 1 Walking Ballista 1 Winter Orb