Main deck (60) 4 Aether Vial 1 Cavern of Souls 3 Dismember 2 Force of Negation 4 Glasspool Mimic 2 Harbinger of the Tides 11 Island 4 Lord of Atlantis 4 Master of the Pearl Trident 4 Merfolk Trickster 4 Merrow Reejerey 4 Mutavault 4 Silvergill Adept 2 Spell Pierce 4 Spreading Seas 1 Thassa, God of the Sea 2 Waterlogged Grove Sideboard (15) 2 Brazen Borrower 4 Chalice of the Void 2 Damping Sphere 2 Deprive 3 Relic of Progenitus 2 Tidebinder Mage