1 Island
1 Lonely Sandbar
1 Mystic Sanctuary
1 Nykthos, Shrine to Nyx
1 Otawara, Soaring City
1 Reliquary Tower
1 Rivendell
1 Terrain Generator
1 Aetherize
1 Alhammarret's Archive
1 Amphibian Downpour
1 An Offer You Can't Refuse
1 Arcane Denial
1 Arcanis the Omnipotent
1 Archmage Emeritus
1 Archmage of Runes
1 Archmage's Charm
1 Artistic Refusal
1 Behold the Multiverse
1 Bident of Thassa
1 Body of Knowledge
1 Brainstorm
1 Brainsurge
1 Change of Plans
1 Chasm Skulker
1 Cryptic Command
1 Curse of the Swine
1 Curse of Verbosity
1 Deduce
1 Deep-Sea Kraken
1 Dragon Throne of Tarkir
1 Dream Fracture
1 Eaten by Piranhas
1 Eldrazi Monument
1 Eluge, the Shoreless Sea
1 Emrakul's Messenger
1 Endless Atlas
1 Engulf the Shore
1 Even the Score
1 Ever-Watching Threshold
1 Faerie Macabre
1 Faerie Mastermind
1 Filter Out
1 Folio of Fancies
1 Frantic Search
1 Grappling Kraken
1 High Tide
1 Hullbreaker Horror
1 Hydro-Man, Fluid Felon
1 Imprisoned in the Moon
1 Invasion of Segovia // Caetus, Sea Tyrant of Segovia
1 Isleback Spawn
1 Keep Safe
1 Kiora Bests the Sea God
1 Kitsa, Otterball Elite
1 Kraken of the Straits
1 Laboratory Maniac
1 Ledger Shredder
1 Lórien Revealed
1 Lyla, Holographic Assistant
1 Monstrosity of the Lake
1 Moonlit Meditation
1 Nadir Kraken
1 Nezahal, Primal Tide
1 O'aka, Traveling Merchant
1 Ojer Pakpatiq, Deepest Epoch // Temple of Cyclical Time
1 Ominous Seas
1 Oneirophage
1 Opt
1 Psychosis Crawler
1 Rapid Hybridization
1 Read the Runes
1 Reality Shift
1 Reef Worm
1 Resculpt
1 Reservoir Kraken
1 Sapphire Medallion
1 Scourge of Fleets
1 Serpent of Yawning Depths
1 Shark Typhoon
1 Shipbreaker Kraken
1 Skullclamp
1 Slinn Voda, the Rising Deep
1 Solemn Simulacrum
1 Spawning Kraken
1 Spider-Sense
1 Stormsurge Kraken
1 Summon: Leviathan
1 Swan Song
1 Symmetry Matrix
1 Teferi's Ageless Insight
1 The Watcher in the Water
1 Thing in the Ice // Awoken Horror
1 Three Steps Ahead
1 Tolarian Winds
1 Toothy, Imaginary Friend
1 Transcendent Master
1 Transcendent Message
1 Trench Behemoth
1 Tromokratis
1 Unstable Experiment
1 Unstoppable Plan
1 Vedalken Orrery
1 Wavebreak Hippocamp
1 Wayfarer's Bauble
1 Whelming Wave
1 Wonder
1 Zenith Chronicler
Sideboard:
1 Katara, Bending Prodigy