Main deck (60) 4 Ancient Den 4 Ancient Tomb 4 Arcbound Ravager 4 Cranial Plating 4 Esper Sentinel 4 Ethersworn Canonist 1 Karakas 4 Mox Opal 4 Nettlecyst 2 Ornithopter 2 Retrofitter Foundry 3 Scrubland 4 Stonecoil Serpent 4 Urza's Saga 4 Vault of Whispers 4 Vault Skirge 4 Walking Ballista Sideboard (15) 4 Chalice of the Void 2 Grafdigger's Cage 3 Prismatic Ending 4 Swords to Plowshares 2 Thorn of Amethyst