Main deck (60) 4 Aether Vial 3 Cavern of Souls 4 Harbinger of the Tides 11 Island 3 Kira, Great Glass-Spinner 4 Lord of Atlantis 4 Master of the Pearl Trident 4 Merfolk Trickster 1 Merrow Reejerey 3 Mutavault 1 Oboro, Palace in the Clouds 4 Silvergill Adept 2 Spreading Seas 2 Subtlety 4 Svyelun of Sea and Sky 4 Tide Shaper 2 Waterlogged Grove Sideboard (15) 4 Chalice of the Void 2 Counterspell 4 Force of Negation 3 Relic of Progenitus 2 Spell Pierce