3 Cavern of Souls
9 Island
4 Mutavault
2 Waterlogged Grove
4 Aether Vial
3 Brazen Borrower // Petty Theft
4 Glasspool Mimic // Glasspool Shore
2 Harbinger of the Tides
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Merfolk Trickster
2 Merrow Reejerey
4 Silvergill Adept
3 Spreading Seas
4 Svyelun of Sea and Sky
4 Tide Shaper
Sideboard:
4 Force of Negation
3 Gut Shot
2 Kira, Great Glass-Spinner
3 Relic of Progenitus
3 Tidebinder Mage