Main deck (60) 4 Aether Vial 2 Brazen Borrower 2 Cavern of Souls 4 Force of Negation 4 Glasspool Mimic 1 Harbinger of the Tides 8 Island 3 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 1 Otawara, Soaring City 4 Silvergill Adept 4 Subtlety 4 Svyelun of Sea and Sky 4 Tide Shaper 1 Waterlogged Grove Sideboard (15) 4 Ancestral Vision 2 Brazen Borrower 2 Chalice of the Void 3 Relic of Progenitus 2 Spell Pierce 2 Thieving Skydiver