Main deck (60)
4 Aether Vial
4 Botanical Sanctum
3 Breeding Pool
4 Cavern of Souls
4 Cenote Scout
2 Harbinger of the Tides
2 Island
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Merfolk Trickster
4 Merrow Reejerey
4 Mutavault
1 Otawara, Soaring City
2 Rishadan Dockhand
4 Tide Shaper
4 Tishana's Tidebinder
4 Vodalian Hexcatcher
2 Waterlogged Grove

Sideboard (15)
4 Chalice of the Void
4 Cursed Totem
3 Force of Negation
2 Harbinger of the Tides
2 Subtlety