1 Bojuka Bog
1 Castle Vantress
1 Choked Estuary
1 Clearwater Pathway // Murkwater Pathway
1 Command Tower
1 Darkwater Catacombs
1 Drowned Catacomb
1 Evolving Wilds
1 Exotic Orchard
1 Halimar Depths
1 Hidden Grotto
1 Maestros Theater
1 Morphic Pool
1 Mortuary Mire
1 Myriad Landscape
1 Obscura Storefront
1 Path of Ancestry
1 Port of Karfell
1 Reliquary Tower
1 Restless Reef
1 Rivendell
1 Rogue's Passage
1 Shipwreck Marsh
1 Sunken Hollow
1 Sunken Ruins
1 Tainted Isle
1 Temple of Deceit
1 Terramorphic Expanse
1 Undercity Sewers
1 Underground River
1 Watery Grave
1 Witch's Cottage
1 Arcane Signet
1 Archetype of Imagination
1 Benthic Anomaly
1 Brainstorm
1 Brainsurge
1 Burnished Hart
1 Charcoal Diamond
1 Charix, the Raging Isle
1 Chart a Course
1 Coiling Rebirth
1 Collector's Vault
1 Commander's Sphere
1 Consider
1 Counterspell
1 Countersquall
1 Crabomination
1 Cyclonic Rift
1 Dark Ritual
1 Decanter of Endless Water
1 Deep-Sea Kraken
1 Dimir Signet
1 Drown in the Loch
1 Eaten by Piranhas
1 Eluge, the Shoreless Sea
1 Everflowing Chalice
1 Fellwar Stone
1 Fleet Swallower
1 Frantic Search
1 Gilded Lotus
1 Go for the Throat
1 Gyruda, Doom of Depths
1 Heartless Summoning
1 Hedron Archive
1 High Tide
1 Hullbreaker Horror
1 Imprisoned in the Moon
1 Infernal Grasp
1 Inkwell Leviathan
1 Junk Winder
1 Kefnet's Monument
1 Kozilek's Unsealing
1 Kraken of the Straits
1 Lightning Greaves
1 Lochmere Serpent
1 Marvo, Deep Operative
1 Military Intelligence
1 Mind Stone
1 Mirror Box
1 Nadir Kraken
1 Negate
1 Obsessive Stitcher
1 Octopus Umbra
1 Ominous Seas
1 Opt
1 Otherworldly Gaze
1 Ponder
1 Pongify
1 Preordain
1 Price of Fame
1 Prismatic Lens
1 Propaganda
1 Quest for Ula's Temple
1 Quicksilver Amulet
1 Rapid Hybridization
1 Reanimate
1 Reconnaissance Mission
1 Reef Worm
1 Reservoir Kraken
1 Rhystic Study
1 River Serpent
1 Roaming Throne
1 Runo Stromkirk // Krothuss, Lord of the Deep
1 Sakashima of a Thousand Faces
1 Sapphire Medallion
1 Satoru Umezawa
1 Scourge of Fleets
1 Sea-Dasher Octopus
1 Serpent of Yawning Depths
1 Shipbreaker Kraken
1 Sky Diamond
1 Slinn Voda, the Rising Deep
1 Sol Ring
1 Solemn Simulacrum
1 Spark Double
1 Spawning Kraken
1 Stormtide Leviathan
1 Striped Riverwinder
1 Swiftfoot Boots
1 Sword Coast Serpent // Capsizing Wave
1 Sword of the Animist
1 Talisman of Dominance
1 Thassa, God of the Sea
1 Thought Vessel
1 Thran Dynamo
1 Tidal Terror
1 Titan of Littjara
1 Tolarian Terror
1 Tromokratis
1 Vesuvan Drifter
1 Victimize
1 Waker of Waves
1 Wash Away
1 Wayfarer's Bauble
1 Whelming Wave
1 Wonder
1 Worn Powerstone
1 Wrexial, the Risen Deep
Sideboard:
1 Acquisition Octopus
1 Arcane Denial
1 Biblioplex Kraken
1 Bident of Thassa
1 Black Sun's Twilight
1 Breaching Leviathan
1 Brinelin, the Moon Kraken
1 Dark Depths
1 Deranged Assistant
1 Diresight
1 Elder Deep-Fiend
1 Engulf the Shore
1 Entomb
1 Fell the Profane // Fell Mire
1 In Garruk's Wake
1 Invasion of Segovia // Caetus, Sea Tyrant of Segovia
1 Kiora Bests the Sea God
1 Likeness Looter
1 Lorthos, the Tidemaker
1 Mesmerizing Benthid
1 Monstrosity of the Lake
1 Nemesis of Reason
1 Pearl Lake Ancient
1 Rain of Revelation
1 Rot-Tide Gargantua
1 Short Bow
1 Stormsurge Kraken
1 Tainted Indulgence
1 Teferi's Time Twist
1 The Grim Captain's Locker
1 The Watcher in the Water
1 Thirst for Discovery
1 Three Steps Ahead
1 Thryx, the Sudden Storm
1 Tidal Kraken
1 Trench Behemoth
1 Vohar, Vodalian Desecrator
1 Waterlogged Teachings // Inundated Archive