1 Alchemist's Refuge
1 Evolving Wilds
12 Forest
1 Halimar Depths
12 Island
1 Lonely Sandbar
1 Lumbering Falls
1 Mage-Ring Network
1 Simic Guildgate
1 Temple of Mystery
1 Temple of the False God
1 Terramorphic Expanse
1 Thornwood Falls
1 Tranquil Thicket
1 Yavimaya Coast
1 Bident of Thassa
1 Breaching Leviathan
1 Chasm Skulker
1 Colossal Whale
1 Commander's Sphere
1 Crush of Tentacles
1 Deep-Sea Kraken
1 Displacement Wave
1 Explosive Vegetation
1 Inkwell Leviathan
1 Interpret the Signs
1 Kederekt Leviathan
1 Kiora, Master of the Depths
1 Kiora, the Crashing Wave
1 Kruphix, God of Horizons
1 Lingering Mirage
1 Lorthos, the Tidemaker
1 Lurking Predators
1 Nature's Lore
1 Overwhelming Denial
1 Pearl Lake Ancient
1 Peregrination
1 Phantasmal Terrain
1 Quest for Ula's Temple
1 Reason // Believe
1 Reef Worm
1 Research the Deep
1 Scattering Stroke
1 Scourge of Fleets
1 Sea's Claim
1 Sealock Monster
1 Shipbreaker Kraken
1 Simic Cluestone
1 Simic Keyrune
1 Simic Signet
1 Simic Sky Swallower
1 Sol Ring
1 Spreading Seas
1 Stormsurge Kraken
1 Stormtide Leviathan
1 Thassa, God of the Sea
1 Thassa's Rebuff
1 Thing in the Ice // Awoken Horror
1 Trench Gorger
1 Tromokratis
1 Unexpected Results
1 Wave of Vitriol
1 Whelming Wave
1 Wrexial, the Risen Deep
Sideboard:
1 Aethersquall Ancient
1 Benthic Behemoth
1 Bog Serpent
1 Breaking Wave
1 Coral Barrier
1 Cryptic Serpent
1 Deep-Sea Serpent
1 Deep-Sea Terror
1 Denizen of the Deep
1 Dirgur Nemesis
1 Dreamwinder
1 Eater of Days
1 Elder Deep-Fiend
1 Floodtide Serpent
1 Gearseeker Serpent
1 Giant Octopus
1 Godhunter Octopus
1 Grozoth
1 Harbor Serpent
1 Isleback Spawn
1 Jokulmorder
1 Kiora's Dismissal
1 Kraken Hatchling
1 Kraken of the Straits
1 Kukemssa Serpent
1 Leviathan
1 Marjhan
1 Nemesis of Reason
1 Nimbus Swimmer
1 Polar Kraken
1 River Serpent
1 Ronom Serpent
1 Sandbar Serpent
1 Scrapdiver Serpent
1 Sea Monster
1 Sea Serpent
1 Segovian Leviathan
1 Serpent of the Endless Sea
1 Shoal Serpent
1 Shrouded Serpent
1 Sky Swallower
1 Slinking Serpent
1 Slipstream Serpent
1 Sliptide Serpent
1 Spire Serpent
1 Steelclad Serpent
1 Striped Riverwinder
1 Taniwha
1 Thassa's Emissary
1 Thing from the Deep
1 Tidal Kraken
1 Tolarian Serpent
1 Tortoise Formation
1 Vodalian Serpent