Main deck (60) 4 Ancient Tomb 4 Cavern of Souls 4 Chalice of the Void 4 City of Traitors 1 Engineered Explosives 1 Karakas 4 Karn, Scion of Urza 4 Karn, the Great Creator 4 Mishra's Bauble 4 Mox Opal 3 Sai, Master Thopterist 4 Seat of the Synod 4 Snow-Covered Island 3 Spellskite 4 Trinket Mage 4 Urza, Lord High Artificer 4 Urza's Bauble Sideboard (15) 2 Engineered Explosives 4 Ensnaring Bridge 1 Grafdigger's Cage 1 Mycosynth Lattice 1 Pithing Needle 2 Sorcerous Spyglass 2 Tezzeret the Seeker 2 Tormod's Crypt