4 Ancient Tomb 4 City of Traitors 2 Defense Grid 1 Expedition Map 4 Grim Monolith 1 Inventors' Fair 4 Karn, the Great Creator 3 Lion's Eye Diamond 4 Lotus Petal 4 Manifold Key 4 Mox Opal 4 Mystic Forge 3 Paradox Engine 4 Serum Powder 3 The One Ring 4 Urza's Saga 4 Urza's Workshop 3 Voltaic Key 1 Argentum Masticore 1 Ensnaring Bridge 4 Karn, Scion of Urza 3 Leyline of the Void 1 Mycosynth Lattice 1 Paradox Engine 1 Ratchet Bomb 1 Skysovereign, Consul Flagship 1 The One Ring 1 Walking Ballista