Main deck (60) 4 Aether Vial 2 Cavern of Souls 4 Force of Negation 2 Glasspool Mimic 10 Island 4 Lord of Atlantis 4 Master of the Pearl Trident 3 Master of Waves 4 Merfolk Trickster 1 Minamo, School at Water's Edge 3 Mutavault 1 Oboro, Palace in the Clouds 4 Rishadan Dockhand 4 Silvergill Adept 4 Svyelun of Sea and Sky 4 Tide Shaper 2 Waterlogged Grove Sideboard (15) 3 Counterspell 3 Dismember 2 Echoing Truth 2 Grafdigger's Cage 2 Relic of Progenitus 3 Tidebinder Mage