Main deck (60) 4 Aether Vial 2 Benthic Biomancer 2 Cavern of Souls 4 Force of Negation 4 Glasspool Mimic 2 Gut Shot 2 Harbinger of the Tides 7 Island 2 Lord of Atlantis 4 Master of the Pearl Trident 4 Merfolk Trickster 1 Minamo, School at Water's Edge 3 Mutavault 1 Oboro, Palace in the Clouds 4 Silvergill Adept 2 Subtlety 4 Svyelun of Sea and Sky 4 Tide Shaper 4 Waterlogged Grove Sideboard (15) 3 Chalice of the Void 2 Counterspell 2 Kira, Great Glass-Spinner 4 Relic of Progenitus 2 Subtlety 2 Thieving Skydiver