Main deck (60) 4 Aether Vial 4 Cavern of Souls 4 Force of Negation 4 Glasspool Mimic 8 Island 4 Lord of Atlantis 4 Master of the Pearl Trident 3 Master of Waves 4 Merfolk Trickster 4 Mutavault 1 Otawara, Soaring City 4 Silvergill Adept 3 Subtlety 4 Svyelun of Sea and Sky 4 Tide Shaper 1 Waterlogged Grove Sideboard (15) 4 Chalice of the Void 4 Counterspell 3 Flusterstorm 3 Relic of Progenitus 1 Subtlety