4 Cavern of Souls
11 Island
2 Mutavault
2 Waterlogged Grove
4 Aether Vial
3 Chalice of the Void
4 Counterspell
2 Glasspool Mimic // Glasspool Shore
2 Harbinger of the Tides
4 Lord of Atlantis
4 Master of the Pearl Trident
2 Merfolk Trickster
4 Silvergill Adept
3 Spreading Seas
2 Svyelun of Sea and Sky
4 Tide Shaper
3 Vodalian Hexcatcher
Sideboard:
1 Ashiok, Dream Render
2 Cursed Totem
2 Dismember
2 Echoing Truth
1 Grafdigger's Cage
2 Hurkyl's Recall
2 Master of Waves
2 Mistcaller
1 Sorcerous Spyglass