25 Snow-Covered Island
1 Aphetto Alchemist
1 Helm of the Host
1 Irenicus's Vile Duplication
1 Nezahal, Primal Tide
1 Pollywog Prodigy
1 The Watcher in the Water
Sideboard:
1 Agna Qel'a
1 Arcane Denial
1 Archmage Emeritus
1 Archmage's Charm
1 Bender's Waterskin
1 Brainstorm
1 Castle Vantress
1 Curiosity
1 Curiosity Crafter
1 Dark Depths
1 Deduce
1 Deep-Sea Kraken
1 Echocasting Symposium
1 Emeritus of Ideation // Ancestral Recall
1 Everflowing Chalice
1 Exclude
1 Folio of Fancies
1 Frantic Search
1 Freed from the Real
1 Halimar Depths
1 Harmonized Trio // Brainstorm
1 High Market
1 Hullbreaker Horror
1 Icebreaker Kraken
1 Keep Safe
1 Kefnet's Monument
1 Kiora, the Rising Tide
1 Lorthos, the Tidemaker
1 Mana Sculpt
1 Mikokoro, Center of the Sea
1 Mind Stone
1 Mirage Mirror
1 Mirror Box
1 Monstrosity of the Lake
1 Myriad Landscape
1 Mystic Confluence
1 Mystic Sanctuary
1 Nadir Kraken
1 Nexus Mentality
1 Octopus Umbra
1 Ominous Seas
1 Patchwork Banner
1 Pemmin's Aura
1 Pensive Professor
1 Polymorphist's Jest
1 Quantum Misalignment
1 Refute
1 Reliquary Tower
1 Replicating Ring
1 Reset
1 Rogue's Passage
1 Sapphire Medallion
1 Scene of the Crime
1 Scourge of Fleets
1 Sea-Dasher Octopus
1 Season of Weaving
1 Secret Tunnel
1 Serpent of Yawning Depths
1 Sol Ring
1 Stormsurge Kraken
1 Sublime Epiphany
1 Summon: Leviathan
1 Terrain Generator
1 The Unagi of Kyoshi Island
1 The Water Crystal
1 Think Twice
1 Thought Vessel
1 Unstoppable Plan
1 Whelming Wave