1 Barkchannel Pathway // Tidechannel Pathway
1 Botanical Sanctum
1 Dreamroot Cascade
1 Flooded Grove
9 Forest
1 Hinterland Harbor
14 Island
1 Nykthos, Shrine to Nyx
1 Reliquary Tower
1 Tangled Islet
1 Tanglepool Bridge
1 Temple of Mystery
1 Vineglimmer Snarl
1 Adrix and Nev, Twincasters
1 Aesi, Tyrant of Gyre Strait
1 Aethersquall Ancient
1 Breaching Leviathan
1 Caelorna, Coral Tyrant
1 Caller of Gales
1 Charix, the Raging Isle
1 Chasm Skulker
1 Counterspell
1 Crush of Tentacles
1 Deep-Sea Kraken
1 Deep-Sea Terror
1 Deepchannel Mentor
1 Displacement Wave
1 Draining Whelk
1 Engulf the Shore
1 Forerunner of the Heralds
1 Grozoth
1 Harbor Serpent
1 Heroic Intervention
1 Inkwell Leviathan
1 Inundate
1 Kederekt Leviathan
1 Kenessos, Priest of Thassa
1 Kiora, Sovereign of the Deep
1 Kiora's Dambreaker
1 Kodama's Reach
1 Koma, Cosmos Serpent
1 Koma, World-Eater
1 Kraken of the Straits
1 Lord of Atlantis
1 Lurking Crocodile
1 Lurking Predators
1 Meandering Towershell
1 Merrow Levitator
1 Mesmerizing Benthid
1 Monstrosity of the Lake
1 Mystic Remora
1 Nadir Kraken
1 Nezahal, Primal Tide
1 Nicanzil, Current Conductor
1 Nimbus Swimmer
1 Ponder
1 Prime Speaker Zegana
1 Quest for Ula's Temple
1 River's Rebuke
1 Scourge of Fleets
1 Sea's Claim
1 Sealock Monster
1 Seascape Aerialist
1 Sensei's Divining Top
1 Serpent of the Endless Sea
1 Serpent of Yawning Depths
1 Shipbreaker Kraken
1 Shoal Serpent
1 Shore Up
1 Simic Sky Swallower
1 Slinn Voda, the Rising Deep
1 Sol Ring
1 Spawning Kraken
1 Spreading Seas
1 Stormsurge Kraken
1 Stormtide Leviathan
1 Thassa's Rebuff
1 Tidal Warrior
1 Tideshaper Mystic
1 Whelming Wave
Sideboard:
1 Arixmethes, Slumbering Isle
1 Benthic Anomaly
1 Bladecoil Serpent
1 Cultivate
1 Denizen of the Deep
1 Elemental Bond
1 Grappling Kraken
1 Hullbreaker Horror
1 Leviathan
1 Marvo, Deep Operative
1 Reason // Believe
1 Scent of Brine
1 Scrapdiver Serpent
1 Tolarian Terror
1 Trench Behemoth