31 Island
1 Myriad Landscape
1 Mystic Sanctuary
1 Rogue's Passage
1 Adaptive Automaton
1 Akroma's Memorial
1 Ancient Crab
1 Aqueous Form
1 Arcane Denial
1 Armored Cancrix
1 Blackblade Reforged
1 Burnished Hart
1 Call to Mind
1 Call to the Kindred
1 Charix, the Raging Isle
1 Chromeshell Crab
1 Coat of Arms
1 Counterspell
1 Crab Umbra
1 Crystacean
1 Cyclonic Rift
1 Distant Melody
1 Dreadlight Monstrosity
1 Drownyard Behemoth
1 Engulf the Shore
1 Fact or Fiction
1 Flow of Ideas
1 Fortress Crab
1 Future Sight
1 Giant Crab
1 Hard Evidence
1 Heraldic Banner
1 High Tide
1 Horseshoe Crab
1 Iceberg Cancrix
1 Imprisoned in the Moon
1 Jwari Scuttler
1 Kefnet's Monument
1 King Crab
1 Launch
1 Merfolk Thaumaturgist
1 Mind Stone
1 Mystic Confluence
1 Negate
1 Obelisk of Urd
1 Opt
1 Oraxid
1 Ponder
1 Preordain
1 Purple-Crystal Crab
1 Reflections of Littjara
1 Retreat to Coralhelm
1 Ruin Crab
1 Sapphire Medallion
1 Scuttletide
1 Skitter Eel
1 Skittering Crustacean
1 Sky Diamond
1 Sol Ring
1 Solemn Simulacrum
1 Spectral Deluge
1 Swiftfoot Boots
1 Sword of the Animist
1 Teferi, Temporal Archmage
1 Thassa's Emissary
1 Twisted Image
1 Vexing Scuttler
1 Whelming Wave
1 Winged Boots
1 Wormfang Crab
Sideboard:
1 Caged Sun
1 Concentrate
1 Dictate of Kruphix
1 Door of Destinies
1 Evolving Wilds
1 Field of Ruin
1 Heirloom Blade
1 Hightide Hermit
1 Kindred Discovery
1 Lightning Greaves
1 Lonely Sandbar
1 Memorial to Genius
1 Mirror of the Forebears
1 Mistform Warchief
1 Path of Ancestry
1 Reliquary Tower
1 Rhystic Study
1 Salvage Scuttler
1 Scourge of Fleets
1 Shadowspear
1 Star Compass
1 Thassa, God of the Sea
1 Triskaidekaphile
1 Vanquisher's Banner
1 Wayfarer's Bauble
1 Whispersilk Cloak
1 Wishcoin Crab