1 Access Tunnel
1 Castle Locthwain
1 Castle Vantress
1 Clearwater Pathway // Murkwater Pathway
1 Command Tower
1 Creeping Tar Pit
1 Darkslick Shores
1 Darkwater Catacombs
1 Drowned Catacomb
1 Fabled Passage
1 Halimar Depths
10 Island
1 Mystic Sanctuary
1 Nykthos, Shrine to Nyx
1 Otawara, Soaring City
1 Polluted Delta
1 Prismatic Vista
1 Rogue's Passage
1 Shipwreck Marsh
1 Sunken Hollow
1 Sunken Ruins
2 Swamp
1 Takenuma, Abandoned Mire
1 Underground River
1 Watery Grave
1 Aqueous Form
1 Arcane Signet
1 Baleful Strix
1 Black Market Connections
1 Bone Shards
1 Brainstorm
1 Charix, the Raging Isle
1 Counterspell
1 Cyclonic Rift
1 Damnation
1 Dark Ritual
1 Deep-Sea Kraken
1 Dimir Signet
1 Drown in the Loch
1 Elder Deep-Fiend
1 Feed the Swarm
1 Fellwar Stone
1 Fierce Guardianship
1 Frantic Search
1 Frogify
1 Geth, Thane of Contracts
1 Gyruda, Doom of Depths
1 Hullbreaker Horror
1 Infernal Grasp
1 Inkwell Leviathan
1 Junk Winder
1 Lightning Greaves
1 Malakir Rebirth // Malakir Mire
1 Military Intelligence
1 Mind Stone
1 Nadir Kraken
1 Nezahal, Primal Tide
1 Obsessive Stitcher
1 Ominous Seas
1 Opposition Agent
1 Otherworldly Gaze
1 Persist
1 Ponder
1 Pongify
1 Preordain
1 Rapid Hybridization
1 Rhystic Study
1 Runo Stromkirk // Krothuss, Lord of the Deep
1 Sapphire Medallion
1 Satoru Umezawa
1 Scourge of Fleets
1 Sea-Dasher Octopus
1 Shipbreaker Kraken
1 Slinn Voda, the Rising Deep
1 Solemn Simulacrum
1 Stormtide Leviathan
1 Swiftfoot Boots
1 Sword of the Animist
1 Talisman of Dominance
1 Thassa, God of the Sea
1 The Meathook Massacre
1 The Reality Chip
1 Thought Vessel
1 Thran Dynamo
1 Trench Behemoth
1 Tromokratis
1 Unmarked Grave
1 Victimize
1 Vohar, Vodalian Desecrator
1 Wayfarer's Bauble
1 Whelming Wave
1 Wrexial, the Risen Deep
Sideboard:
1 Burnished Hart
1 Consider
1 Fact or Fiction
1 Lochmere Serpent
1 Mikaeus, the Unhallowed
1 Mirror Box
1 Nemesis of Reason
1 Otherworldly Gaze
1 Sakashima of a Thousand Faces
1 Serpent of Yawning Depths