3 Lonely Sandbar
4 Aether Vial
4 Benthic Biomancer
4 Silvergill Adept
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Merfolk Trickster
2 Harbinger of the Tides
2 Tidebinder Mage
4 Force of Negation
4 Spreading Seas
4 Repeal
1 Oboro, Palace in the Clouds
1 Cavern of Souls
3 Waterlogged Grove
4 Mutavault
8 Island
Sideboard
2 Hurkyl's Recall
2 Grafdigger's Cage
3 Relic of Progenitus
2 Phyrexian Revoker
2 Thassa, God of the Sea
2 Deprive
2 Vapor Snag