Main deck (60) 4 Aether Vial 4 Cavern of Souls 2 Clearwater Pathway 4 Dismember 4 Force of Negation 7 Island 4 Lord of Atlantis 4 Master of the Pearl Trident 4 Merfolk Trickster 2 Mistcaller 4 Mutavault 2 Otawara, Soaring City 1 Silvergill Adept 1 Spreading Seas 4 Svyelun of Sea and Sky 4 Tide Shaper 4 Vodalian Hexcatcher 1 Waterlogged Grove Sideboard (15) 2 Chalice of the Void 2 Grafdigger's Cage 2 Harbinger of the Tides 2 Mana Leak 3 Silvergill Adept 1 Spreading Seas 3 Subtlety