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