1 Academy Ruins
1 Ancient Tomb
1 Coral Atoll
1 Desert of the Mindful
1 Evolving Wilds
1 Ghost Quarter
1 Halimar Depths
14 Island
1 Lonely Sandbar
1 Memorial to Genius
1 Myriad Landscape
1 Nykthos, Shrine to Nyx
1 Oboro, Palace in the Clouds
1 Path of Ancestry
1 Reliquary Tower
1 Remote Isle
1 Rogue's Passage
1 Scavenger Grounds
1 Seat of the Synod
1 Temple of the False God
1 Terrain Generator
1 Terramorphic Expanse
1 Aetherize
1 Aetherspouts
1 Aethersquall Ancient
1 Armillary Sphere
1 Benthic Behemoth
1 Blue Sun's Zenith
1 Breaching Leviathan
1 Caged Sun
1 Cancel
1 Coastal Breach
1 Crush of Tentacles
2 Cyclonic Rift
1 Darksteel Ingot
1 Deep-Sea Kraken
1 Deepchannel Mentor
1 Denizen of the Deep
1 Devastation Tide
1 Displacement Wave
1 Engulf the Shore
1 Evacuation
1 Gauntlet of Power
1 Gilded Lotus
1 Grozoth
1 Harbinger of the Tides
1 Harbor Serpent
1 Hedron Archive
1 High Tide
1 Inkwell Leviathan
1 Isleback Spawn
1 Jace, Ingenious Mind-Mage
1 Kederekt Leviathan
1 Kraken of the Straits
1 Leyline of Anticipation
1 Lingering Mirage
1 Lorthos, the Tidemaker
1 Pearl Lake Ancient
1 Propaganda
1 Pull from the Deep
1 Quest for Ula's Temple
1 Quicksilver Amulet
1 Quicksilver Fountain
1 Reef Worm
1 Rhystic Study
1 Rush of Knowledge
1 Scourge of Fleets
1 Sealock Monster
1 Serpent of the Endless Sea
1 Shipbreaker Kraken
1 Slinn Voda, the Rising Deep
1 Sol Ring
1 Spell Swindle
1 Spreading Seas
1 Stormsurge Kraken
1 Stormtide Leviathan
1 Thada Adel, Acquisitor
1 Thassa, God of the Sea
1 Thought Vessel
1 Thran Dynamo
1 Tidal Kraken
1 Trench Gorger
1 Tromokratis
1 Ugin, the Spirit Dragon
1 Whelming Wave
1 Worn Powerstone
Sideboard:
1 Alexi, Zephyr Mage
1 Colossal Whale
1 Coral Barrier
1 Erratic Mutation
1 Higure, the Still Wind
1 Jokulmorder
1 Kraken Hatchling
1 Llawan, Cephalid Empress
1 Merfolk Thaumaturgist
1 Myojin of Seeing Winds
1 Overwhelming Denial
1 Paragon of Gathering Mists
1 Research the Deep
1 Scattering Stroke
1 Sunder
1 Thassa's Rebuff
1 Thawing Glaciers
1 Vodalian Serpent
1 Whirlpool Rider