2 Walking Ballista 1 World Breaker 2 Ulamog, the Ceaseless Hunger 1 Sanctum of Ugin 2 Ugin, the Spirit Dragon 4 Karn Liberated 3 Wurmcoil Engine 4 Ancient Stirrings 4 Expedition Map 3 Relic of Progenitus 1 Horizon Canopy 4 Chromatic Star 1 Urza's Factory 1 Ghost Quarter 4 Oblivion Stone 4 Sylvan Scrying 3 Forest 4 Chromatic Sphere 4 Urza's Power Plant 4 Urza's Mine 4 Urza's Tower Sideboard 2 Karn, Scion of Urza 2 Spatial Contortion 3 Thought-Knot Seer 2 Warping Wail 3 Thragtusk 3 Nature's Claim