1 Bojuka Bog
1 Choked Estuary
1 Command Tower
1 Darkslick Shores
1 Darkwater Catacombs
1 Demolition Field
1 Dimir Aqueduct
1 Drowned Catacomb
1 Drownyard Temple
1 Halimar Depths
9 Island
1 Murky Sewer
1 River of Tears
1 Rogue's Passage
1 Serpent's Pass
1 Shipwreck Marsh
1 Sunken Hollow
5 Swamp
1 Tainted Isle
1 Takenuma, Abandoned Mire
1 Temple of the False God
1 Undercity Sewers
1 Underground River
1 Watery Grave
1 Witch's Cottage
1 Aberrant Return
1 Aetherize
1 Animate Dead
1 Banishing Betrayal
1 Bitter Triumph
1 Black Market Connections
1 Brinelin, the Moon Kraken
1 Buried Alive
1 Caelorna, Coral Tyrant
1 Cephalid Inkmage
1 Coiling Rebirth
1 Consider
1 Cryptic Serpent
1 Dark Ritual
1 Deranged Assistant
1 Diresight
1 Dread Return
1 Elder Deep-Fiend
1 Entomb
1 Fact or Fiction
1 Feed the Swarm
1 Glasspool Mimic // Glasspool Shore
1 Gyruda, Doom of Depths
1 High Tide
1 Hullbreaker Horror
1 Inkwell Leviathan
1 Invasion of Segovia // Caetus, Sea Tyrant of Segovia
1 Irenicus's Vile Duplication
1 Junk Winder
1 Lightning Greaves
1 Malakir Rebirth // Malakir Mire
1 Marvo, Deep Operative
1 Phyrexian Arena
1 Price of Fame
1 Reanimate
1 Rejoin the Fight
1 Ripples of Undeath
1 Rite of Replication
1 River Serpent
1 Runo Stromkirk // Krothuss, Lord of the Deep
1 Sea-Dasher Octopus
1 Serpent of Yawning Depths
1 Slinn Voda, the Rising Deep
1 Sol Ring
1 Solemn Simulacrum
1 Starwinder
1 Stillness in Motion
1 Stitcher's Supplier
1 Stormsurge Kraken
1 Stormtide Leviathan
1 Striped Riverwinder
1 Summon: Leviathan
1 Swallowed by Leviathan
1 Sword Coast Serpent // Capsizing Wave
1 Tainted Indulgence
1 Thought Scour
1 Tidal Terror
1 Tolarian Terror
1 Tromokratis
1 Vohar, Vodalian Desecrator
1 Whelming Wave
1 Winternight Stories
1 Withering Torment
Sideboard:
1 Acquisition Octopus
1 Arcane Signet
1 Changeling Outcast
1 Charcoal Diamond
1 Dimir Signet
1 Eaten by Piranhas
1 Fellwar Stone
1 Heartless Summoning
1 Loch Mare
1 Military Intelligence
1 Mind Stone
1 Ominous Seas
1 Sky Diamond
1 Swiftfoot Boots