1 Cavern of Souls
16 Island
1 Minamo, School at Water's Edge
1 Nykthos, Shrine to Nyx
1 Oboro, Palace in the Clouds
1 Adaptive Automaton
1 Aether Vial
1 Aetherspouts
1 Aquitect's Will
1 Arcane Denial
1 Benthic Biomancer
1 Coastal Breach
1 Cold-Eyed Selkie
1 Counterspell
1 Curious Obsession
1 Cursecatcher
1 Distant Melody
1 Harbinger of the Tides
1 Kiora, Behemoth Beckoner
1 Kopala, Warden of Waves
1 Lord of Atlantis
1 Lullmage Mentor
1 Master of the Pearl Trident
1 Master of Waves
1 Merfolk Sovereign
1 Merfolk Trickster
1 Merrow Harbinger
1 Merrow Reejerey
1 Metallic Mimic
1 Mist-Cloaked Herald
1 Phantasmal Image
1 River Sneak
1 Riverwise Augur
1 Sage of Fables
1 Sage's Dousing
1 Sapphire Medallion
1 Silvergill Adept
1 Snap
1 Spell Syphon
1 Spreading Seas
1 Tempest Caller
1 Tidebinder Mage
1 Wake Thrasher
1 Watertrap Weaver
1 Wizard's Retort
Sideboard:
1 Augur of Bolas
1 Coralhelm Commander
1 Cosi's Trickster
1 Cyclonic Rift
1 Enclave Cryptologist
1 Fact or Fiction
1 Kasmina, Enigmatic Mentor
1 Merrow Commerce
1 Mistcaller
1 Rapid Hybridization
1 Sea's Claim
1 Seafloor Oracle
1 Stonybrook Banneret
1 Tribal Unity