4 Botanical Sanctum
4 Cavern of Souls
5 Island
3 Mutavault
3 Waterlogged Grove
4 Aether Vial
1 Brazen Borrower // Petty Theft
4 Chalice of the Void
4 Harbinger of the Tides
4 Kumena's Speaker
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Merfolk Mistbinder
4 Silvergill Adept
4 Svyelun of Sea and Sky
4 Tide Shaper
Sideboard:
4 Force of Negation
3 Gut Shot
3 Relic of Progenitus
2 Spreading Seas
3 Tidebinder Mage