1 Bojuka Bog
1 Choked Estuary
1 Command Tower
1 Dimir Guildgate
1 Dismal Backwater
1 Halimar Depths
18 Island
1 Mortuary Mire
1 Reliquary Tower
1 Shipwreck Marsh
9 Swamp
1 Takenuma, Abandoned Mire
1 Temple of Deceit
1 Aetherize
1 Arcane Denial
1 Arcane Signet
1 Archetype of Imagination
1 Ashiok, Dream Render
1 Baleful Strix
1 Brainstorm
1 Brinelin, the Moon Kraken
1 Charix, the Raging Isle
1 Commander's Sphere
1 Consider
1 Counterspell
1 Coveted Jewel
1 Crippling Fear
1 Crush of Tentacles
1 Dark Ritual
1 Deadly Dispute
1 Dimir Signet
1 Drown in the Loch
1 Elder Deep-Fiend
1 Engulf the Shore
1 Extract from Darkness
1 Feed the Swarm
1 Fleet Swallower
1 Frantic Search
1 Gyruda, Doom of Depths
1 Heartless Summoning
1 Hero's Downfall
1 Hullbreaker Horror
1 Incarnation Technique
1 Infernal Grasp
1 Inkwell Leviathan
1 Kraken Hatchling
1 Lochmere Serpent
1 Malevolent Hermit // Benevolent Geist
1 Mesmerizing Benthid
1 Mind Stone
1 Nadir Kraken
1 Negate
1 Nezahal, Primal Tide
1 Otherworldly Gaze
1 Persist
1 Pongify
1 Propaganda
1 Reanimate
1 Reservoir Kraken
1 Runo Stromkirk // Krothuss, Lord of the Deep
1 Scourge of Fleets
1 Sea-Dasher Octopus
1 Serpent of Yawning Depths
1 Shipbreaker Kraken
1 Slinn Voda, the Rising Deep
1 Sol Ring
1 Spawning Kraken
1 Stormtide Leviathan
1 Swiftfoot Boots
1 The Reality Chip
1 Thryx, the Sudden Storm
1 Trench Behemoth
1 Victimize
1 Whelming Wave
1 Windfall
1 Wonder
Sideboard:
1 Acquisition Octopus
1 Baleful Mastery
1 Biolume Egg // Biolume Serpent
1 Compulsive Research
1 Deep-Sea Kraken
1 Junk Winder
1 Leap
1 Memory Deluge
1 Merfolk Looter
1 Mind Flayer
1 Mirror Box
1 Obsessive Stitcher
1 Octoprophet
1 Ominous Seas
1 Power Word Kill
1 Rot-Tide Gargantua
1 Saw It Coming
1 Sign in Blood
1 Sleep
1 Snapcaster Mage
1 Thieving Skydiver
1 Tromokratis
1 Underworld Connections