3 Glasspool Mimic
2 Phantasmal Image
2 Harbinger of the Tides
2 Master of Waves
4 Force of Negation
4 Aether Vial
4 Tide Shaper
4 Merfolk Trickster
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Silvergill Adept
4 Svyelun of Sea and Sky
2 Cavern of Souls
2 Waterlogged Grove
4 Mutavault
1 Otawara, Soaring City
1 Oboro, Palace in the Clouds
1 Minamo, School at Water's Edge
8 Island
Sideboard
2 Mystical Dispute
1 Kira, Great Glass-Spinner
1 Manriki-Gusari
2 Damping Sphere
2 Dismember
3 Chalice of the Void
2 Relic of Progenitus
2 Hurkyl's Recall