1 Bojuka Bog
1 Castle Vantress
1 Cavern of Souls
1 Choked Estuary
1 Clearwater Pathway // Murkwater Pathway
1 Command Tower
1 Creeping Tar Pit
1 Darkslick Shores
1 Darkwater Catacombs
1 Dreadship Reef
1 Drowned Catacomb
1 Fetid Pools
1 Flooded Strand
1 Island
1 Mikokoro, Center of the Sea
1 Minamo, School at Water's Edge
1 Misty Rainforest
1 Morphic Pool
1 Oboro, Palace in the Clouds
1 Otawara, Soaring City
1 Polluted Delta
1 Riptide Laboratory
1 Rishadan Port
1 Scavenger Grounds
1 Snow-Covered Island
1 Snow-Covered Swamp
1 Sunken Hollow
1 Sunken Ruins
1 Swamp
1 Takenuma, Abandoned Mire
1 Temple of Deceit
1 Underground River
1 Underground Sea
1 Wasteland
1 Watery Grave
1 Agadeem's Awakening // Agadeem, the Undercrypt
1 Aquitect's Will
1 Arcane Signet
1 Bident of Thassa
1 Brainstorm
1 Consuming Tide
1 Coralhelm Commander
1 Counterspell
1 Cryptic Command
1 Deepchannel Mentor
1 Deeproot Waters
1 Demonic Consultation
1 Demonic Tutor
1 Dimir Signet
1 Drown in the Loch
1 Empress Galina
1 Extinction Event
1 Fatal Push
1 Feed the Swarm
1 Force of Negation
1 Force of Will
1 Harbinger of the Tides
1 Inkfathom Witch
1 Kopala, Warden of Waves
1 Lord of Atlantis
1 Lullmage Mentor
1 Master of the Pearl Trident
1 Master of Waves
1 Merfolk Sovereign
1 Merfolk Trickster
1 Merrow Bonegnawer
1 Merrow Commerce
1 Merrow Harbinger
1 Merrow Reejerey
1 Misdirection
1 Ponder
1 Preordain
1 Reconnaissance Mission
1 Rhystic Study
1 Rishadan Dockhand
1 Rising Waters
1 River's Rebuke
1 Rushing River
1 Scheming Symmetry
1 Scroll Thief
1 Seafloor Oracle
1 Seahunter
1 Silvergill Adept
1 Sol Ring
1 Spreading Seas
1 Stonybrook Banneret
1 Svyelun of Sea and Sky
1 Tainted Pact
1 Talisman of Dominance
1 Thada Adel, Acquisitor
1 Thassa, God of the Sea
1 Thassa's Oracle
1 Thieving Skydiver
1 Tide Shaper
1 True-Name Nemesis
1 Umezawa's Jitte
1 Undermine
1 Venser, Shaper Savant
1 Wanderwine Prophets
Sideboard:
1 Sygg, River Cutthroat