4 Aether Vial
3 Brazen Borrower
2 Glasspool Mimic
3 Harbinger of the Tides
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Master of Waves
4 Merfolk Trickster
4 Silvergill Adept
4 Svyelun of Sea and Sky
4 Tide Shaper
1 Cavern of Souls
9 Island
1 Minamo, School at Water's Edge
4 Mutavault
1 Oboro, Palace in the Clouds
2 Otawara, Soaring City
2 Waterlogged Grove
Sideboard
1 Chalice of the Void
4 Counterspell
4 Force of Negation
2 Hurkyl's Recall
4 Relic of Progenitus