1 Command Tower
1 Darkwater Catacombs
1 Dreadship Reef
1 Drowned Catacomb
1 Evolving Wilds
1 Fabled Passage
1 Fetid Pools
1 Frost Marsh
1 Halimar Depths
1 Ice Tunnel
1 Misty Rainforest
1 Polluted Delta
1 Reliquary Tower
1 Restless Reef
9 Snow-Covered Island
2 Snow-Covered Swamp
1 Sunken Hollow
1 Sunken Ruins
1 Temple of Deceit
1 Undercity Sewers
1 Watery Grave
1 An Offer You Can't Refuse
1 Biblioplex Kraken
1 Bident of Thassa
1 Brainstorm
1 Brainsurge
1 Cephalid Inkmage
1 Charix, the Raging Isle
1 Counterpoint
1 Counterspell
1 Countersquall
1 Crush of Tentacles
1 Engulf the Shore
1 Frantic Search
1 Grappling Kraken
1 Gyruda, Doom of Depths
1 Hullbreaker Horror
1 Icebreaker Kraken
1 Kederekt Leviathan
1 Kiora Bests the Sea God
1 Kiora, the Rising Tide
1 Kiora's Dambreaker
1 Kraken's Eye
1 Lochmere Serpent
1 Mana Drain
1 Marvo, Deep Operative
1 Monstrosity of the Lake
1 Nadir Kraken
1 Nemesis of Reason
1 Octoprophet
1 Ominous Seas
1 One with the Multiverse
1 Otherworldly Gaze
1 Ponder
1 Preordain
1 Pull from the Deep
1 Purple Pentapus
1 Quest for Ula's Temple
1 Ruin Crab
1 Runo Stromkirk // Krothuss, Lord of the Deep
1 Scour for Scrap
1 Scourge of Fleets
1 Sea-Dasher Octopus
1 Search for Azcanta // Azcanta, the Sunken Ruin
1 Sensei's Divining Top
1 Serpent of Yawning Depths
1 Slinn Voda, the Rising Deep
1 Sol Ring
1 Spawning Kraken
1 Starwinder
1 Stitch Together
1 Stormsurge Kraken
1 Summon: Leviathan
1 Swiftfoot Boots
1 Thassa, Deep-Dwelling
1 Thassa, God of the Sea
1 The Grim Captain's Locker
1 The Reality Chip
1 The Unagi of Kyoshi Island
1 Three Steps Ahead
1 Tidal Terror
1 Undermine
1 Unified Will
1 Voracious Greatshark
1 Waker of Waves
1 Wash Away
1 Waterlogged Hulk // Watertight Gondola
1 Waterlogged Teachings // Inundated Archive
1 Whelming Wave
1 Wrexial, the Risen Deep
1 Writ of Return
Sideboard:
1 Acquisition Octopus