1 Dismal Backwater
1 Haunted Fengraf
1 Hengegate Pathway // Mistgate Pathway
23 Island
1 Lotus Field
1 Radiant Fountain
1 Soaring Seacliff
1 Swiftwater Cliffs
1 Temple of Epiphany
1 Thornwood Falls
1 Tranquil Cove
1 Aether Adept
1 Black Vise
1 Chart a Course
1 Clone
1 Consider
1 Control Magic
1 Crush of Tentacles
1 Diplomatic Immunity
1 Dowsing Dagger // Lost Vale
1 Drag Under
1 Dungeon Geists
1 Enervate
1 Fading Hope
1 Fleet Swallower
1 Gaseous Form
1 Gilded Lotus
1 Glasspool Mimic // Glasspool Shore
1 Grafted Identity
1 Hover Barrier
1 Index
1 Inkfathom Divers
1 Karn's Temporal Sundering
1 Kiora Bests the Sea God
1 Kopala, Warden of Waves
1 Lotus Bloom
1 Ludevic's Test Subject // Ludevic's Abomination
1 Merfolk Traders
1 Mist-Cloaked Herald
1 Mystic Redaction
1 Mystic Reflection
1 Nadir Kraken
1 Negate
1 Nevinyrral's Disk
1 Nezahal, Primal Tide
1 Nyx Lotus
1 Overtaker
1 Phantom Warrior
1 Portent
1 Pouncing Shoreshark
1 Propaganda
1 Pursued Whale
1 Reconstruction
1 Reflections of Littjara
1 Reject
1 Retreat to Coralhelm
1 River Sneak
1 River's Rebuke
1 Riverwise Augur
1 Rootwater Commando
1 Ruin Crab
1 Seal of Removal
1 Search for Azcanta // Azcanta, the Sunken Ruin
1 Serpent of Yawning Depths
1 Shadow Rift
1 Shark Typhoon
1 Silvergill Adept
1 Sol Ring
1 Soul of the Rapids
1 Stormsurge Kraken
1 Sublime Epiphany
1 Teferi, Master of Time
1 Thassa, Deep-Dwelling
1 The Immortal Sun
1 Tidal Barracuda
1 Twiddle
1 Unsummon
1 Wavebreak Hippocamp
Sideboard:
1 Clairvoyance
1 Deeptread Merrow
1 Harbor Serpent
1 Induced Amnesia
1 Keep Safe
2 Kraken
1 Kraken's Eye
1 Lifetap
1 Lofty Denial
1 Mana Leak
1 Manta Ray
3 Merfolk
1 Thassa's Oracle
1 Tormod's Crypt
1 Turn Aside