1 Arcane Lighthouse
1 Coral Atoll
1 Detection Tower
28 Island
1 Reliquary Tower
1 Riptide Laboratory
1 Steam Vents
1 Watery Grave
1 Aether Adept
1 Aetherize
1 Aetherspouts
1 Archaeomancer
1 Ashnod's Altar
1 Azami, Lady of Scrolls
1 Barrin, Master Wizard
1 Beguiler of Wills
1 Bident of Thassa
1 Body Double
1 Brainstorm
1 Concentrate
1 Conjurer's Closet
1 Counterspell
1 Crush of Tentacles
1 Cryptic Command
1 Displacement Wave
1 Enclave Cryptologist
1 Forbid
1 Ghostly Flicker
1 Herald's Horn
1 Impulse
1 Inalla, Archmage Ritualist
1 Into the Roil
1 Inundate
1 Kindred Discovery
1 Levitation
1 Merfolk Trickster
1 Mystic Confluence
1 Mystical Tutor
1 Naban, Dean of Iteration
1 Ponder
1 Portal Mage
1 Remand
1 Salvager of Secrets
1 Sapphire Medallion
1 Scourge of Fleets
1 Sea Gate Oracle
1 Seahunter
1 Serum Visions
1 Sigil Tracer
1 Sol Ring
1 Talrand, Sky Summoner
1 Thalakos Deceiver
1 Thalakos Seer
1 Thassa, God of the Sea
1 Thought Vessel
1 Time Warp
1 Vanquisher's Banner
1 Venser, Shaper Savant
1 Voidmage Husher
1 Wanderwine Prophets
1 Wash Out
1 Whelming Wave
1 Wizard's Retort
Sideboard:
1 Arcanis the Omnipotent
1 Breaching Leviathan
1 Capsize
1 Drag Under
1 High Tide
1 Inkwell Leviathan
1 Mirror Gallery
1 Nezahal, Primal Tide
1 Rayne, Academy Chancellor
1 Rite of Replication
1 Riverwise Augur
1 Sage of Fables
1 Stonybrook Banneret
1 Stormtide Leviathan
1 Thing in the Ice // Awoken Horror