4 Tide Shaper
2 Harbinger of the Tides
4 Svyelun of Sea and Sky
4 Silvergill Adept
4 Merfolk Trickster
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Glasspool Mimic
4 Subtlety
4 Archmage's Charm
4 Aether Vial
10 Island
1 Cavern of Souls
1 Oboro, Palace in the Clouds
1 Minamo, School at Water's Edge
2 Waterlogged Grove
2 Fiery Islet
1 Castle Vantress
Sideboard
4 Chalice of the Void
4 Force of Negation
3 Thieving Skydiver
2 Tidebinder Mage
2 Brazen Borrower