1 Coral Atoll
30 Island
1 Memorial to Genius
1 Moonring Island
1 Myriad Landscape
1 Mystifying Maze
1 Nykthos, Shrine to Nyx
1 Reliquary Tower
1 Soldevi Excavations
1 Temple of the False God
1 Terrain Generator
1 Aetherize
1 Aetherspouts
1 Aethersquall Ancient
1 Aquitect's Will
1 Arbiter of the Ideal
1 Arcane Artisan
1 Armillary Sphere
1 Artisan of Kozilek
1 Bone to Ash
1 Breaching Leviathan
1 Bribery
1 Burnished Hart
1 Caged Sun
1 Capsize
1 Clever Impersonator
1 Clone Legion
1 Coastal Breach
1 Coercive Portal
1 Confirm Suspicions
1 Confound
1 Conqueror's Galleon // Conqueror's Foothold
1 Consecrated Sphinx
1 Contradict
1 Coralhelm Commander
1 Crush of Tentacles
1 Cryptic Command
1 Curse of the Swine
1 Cyclonic Rift
1 Dakra Mystic
1 Deadeye Navigator
1 Deep Analysis
1 Deep-Sea Kraken
1 Deepchannel Mentor
1 Deepfathom Skulker
1 Deeproot Waters
1 Devastation Tide
1 Dismiss
1 Dragon Wings
1 Dreamstone Hedron
1 Elder Deep-Fiend
1 Empress Galina
1 Enclave Cryptologist
1 Engulf the Shore
1 Evacuation
1 Exclude
1 Expropriate
1 Floodchaser
1 Floodgate
1 Flow of Ideas
1 Future Sight
1 Gauntlet of Power
1 Gearseeker Serpent
1 Giant Oyster
1 Gilded Lotus
1 Grozoth
1 Guardian of Tazeem
1 Hedron Archive
1 Inkwell Leviathan
1 Into the Roil
1 Inundate
1 Kederekt Leviathan
1 Kira, Great Glass-Spinner
1 Kraken of the Straits
1 Leyline of Anticipation
1 Lightning Greaves
1 Lingering Mirage
1 Llawan, Cephalid Empress
1 Lord of Atlantis
1 Lorthos, the Tidemaker
1 Mana Drain
1 Master of the Pearl Trident
1 Master of Waves
1 Merfolk Looter
1 Merfolk Sovereign
1 Merfolk Wayfinder
1 Merrow Harbinger
1 Merrow Reejerey
1 Mind Stone
1 Mulldrifter
1 Mystic Confluence
1 Mystic Remora
1 Nevinyrral's Disk
1 Nezahal, Primal Tide
1 Nimble Obstructionist
1 Oblivion Stone
1 Omniscience
1 Overwhelming Denial
1 Paragon of Gathering Mists
1 Pearl Lake Ancient
1 Polymorphist's Jest
1 Pongify
1 Propaganda
1 Quest for Ula's Temple
1 Quicksilver Amulet
1 Quicksilver Fountain
1 Rapid Hybridization
1 Realmwright
1 Reef Worm
1 Remand
1 Rhystic Study
1 Rite of Replication
1 River Serpent
1 Rootwater Thief
1 Rush of Knowledge
1 Sand Squid
1 Sapphire Medallion
1 Scatter Arc
1 Scattering Stroke
1 Scourge of Fleets
1 Scroll Thief
1 Sea Scryer
1 Sea's Claim
1 Seafloor Oracle
1 Seahunter
1 Sealock Monster
1 Seasinger
1 Serpent of the Endless Sea
1 Shipbreaker Kraken
1 Sky Diamond
1 Slinn Voda, the Rising Deep
1 Sol Ring
1 Solemn Simulacrum
1 Spell Swindle
1 Spreading Seas
1 Stonybrook Banneret
1 Stormsurge Kraken
1 Stormtide Leviathan
1 Streambed Aquitects
1 Swiftfoot Boots
1 Sword of the Animist
1 Teferi, Mage of Zhalfir
1 Thada Adel, Acquisitor
1 Thassa, God of the Sea
1 Thaumatic Compass // Spires of Orazca
1 Thought Vessel
1 Thran Dynamo
1 Tidal Warrior
1 Tideshaper Mystic
1 Time of Ice
1 Tromokratis
1 Vedalken Orrery
1 Vedalken Shackles
1 Veiled Serpent
1 Venser, Shaper Savant
1 Void Winnower
1 Wayfarer's Bauble
1 Whelming Wave
1 Wonder
1 Worn Powerstone
Sideboard:
1 Bident of Thassa
1 Blue Sun's Zenith
1 Colossal Whale
1 Dandân
1 Deranged Assistant
1 Drowner of Hope
1 Grand Architect
1 Harbinger of the Tides
1 Jace, the Mind Sculptor
1 Memnarch
1 Merfolk Trickster
1 Overwhelming Intellect
1 Planeswalker's Mischief
1 Pull from Tomorrow
1 Rayne, Academy Chancellor
1 Riptide Pilferer
1 River's Rebuke
1 Riverwise Augur
1 Sage's Dousing
1 Saprazzan Heir
1 Surgespanner
1 Tamiyo, the Moon Sage
1 The Immortal Sun
1 Thousand Winds