2 Harbinger of the Tides
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Merfolk Trickster
4 Subtlety
4 Svyelun of Sea and Sky
4 Tide Shaper
4 Vodalian Hexcatcher
4 Aether Vial
4 Dismember
2 Spreading Seas
4 Cavern of Souls
7 Island
1 Minamo, School at Water's Edge
4 Mutavault
1 Oboro, Palace in the Clouds
2 Otawara, Soaring City
1 Waterlogged Grove
Sideboard
2 Harbinger of the Tides
3 Chalice of the Void
4 Force of Negation
2 Hurkyl's Recall
2 Kira, Great Glass-Spinner
2 Mana Leak