1 Ancient Tomb
1 Buried Ruin
1 Deserted Temple
1 Halimar Depths
24 Island
1 Lonely Sandbar
2 Nykthos, Shrine to Nyx
1 Petrified Field
1 Reliquary Tower
1 Rogue's Passage
1 Saprazzan Cove
1 Teferi's Isle
1 Temple of the False God
1 Tolaria West
1 Ancestral Vision
1 Artificial Evolution
1 Beacon of Tomorrows
1 Benthic Explorers
1 Bident of Thassa
1 Blue Sun's Zenith
1 Brainstorm
1 Breaking Wave
1 Brine Elemental
1 Caged Sun
1 Cephalid Broker
1 Cephalid Constable
1 Cephalid Looter
1 Cephalid Retainer
1 Chasm Skulker
1 Chromeshell Crab
1 Colossal Whale
1 Cryptic Gateway
1 Declaration of Naught
1 Deep Water
1 Deep-Sea Kraken
1 Deepchannel Mentor
1 Doubling Cube
1 Empress Galina
1 Everflowing Chalice
1 Eye of Ramos
1 Fact or Fiction
1 Flow of Ideas
1 Frantic Search
1 Gauntlet of Power
1 Giant Oyster
1 Gilded Lotus
1 Great Whale
1 Grozoth
1 Gush
1 High Tide
1 Homarid Spawning Bed
1 Iceberg
1 Impulse
1 Inkwell Leviathan
1 Inundate
1 Isleback Spawn
1 Jace's Ingenuity
1 Jin-Gitaxias, Core Augur
1 Jokulmorder
1 Kederekt Leviathan
1 Keiga, the Tide Star
1 Kraken of the Straits
1 Leyline of Anticipation
1 Llawan, Cephalid Empress
1 Lorthos, the Tidemaker
1 Man-o'-War
1 Mind Spring
1 Mysteries of the Deep
1 Mystical Tutor
1 Narwhal
1 Omen Machine
1 Opportunity
1 Ponder
1 Preordain
1 Psychic Battle
1 Quest for Ula's Temple
1 Quicksilver Amulet
1 Research the Deep
1 Rewind
1 Rhystic Study
1 Rising Waters
2 Rite of Replication
1 Sand Squid
1 Sandbar Serpent
1 Sapphire Medallion
1 Scattering Stroke
1 Scourge of Fleets
1 Sea's Claim
1 Shipbreaker Kraken
1 Silver Myr
1 Snap
1 Sol Ring
1 Soul Foundry
1 Spell Crumple
1 Spin into Myth
1 Spreading Seas
1 Stormtide Leviathan
1 Sunken City
1 Tamiyo, the Moon Sage
1 Thassa, God of the Sea
1 Thassa's Rebuff
1 Thirst for Knowledge
1 Thran Dynamo
1 Tidal Kraken
1 Tidal Wave
1 Tidings
1 Time Reversal
1 Time Spiral
1 Time Stretch
1 Time Warp
1 Timesifter
1 Trench Gorger
1 Tromokratis
1 Turnabout
1 Wake Thrasher
1 Walk the Aeons
1 Whelming Wave
1 Worldslayer
Sideboard:
1 Elder Spawn
1 Harbor Serpent
1 High Seas
1 Leviathan
1 Marjhan
1 Polar Kraken
1 Taniwha
1 Thing from the Deep