17 Island
Sideboard:
1 Admiral's Order
2 Aegis Turtle
1 Aquatic Incursion
1 Arcane Adaptation
1 Callaphe, Beloved of the Sea
3 Capture Sphere
1 Castaway's Despair
1 Cold-Water Snapper
1 Crashing Tide
1 Crystacean
2 Deadeye Rig-Hauler
1 Deeproot Waters
1 Depths of Desire
1 Dive Down
1 Entrancing Melody
2 Essence Scatter
1 Fishliver Oil
1 Glimmerbell
1 Gust of Wind
1 Ichthyomorphosis
2 Merfolk Skyscout
2 Merfolk Trickster
1 Merfolk Wayfinder
2 Mist-Cloaked Herald
1 Nadir Kraken
4 Negate
1 Nezahal, Primal Tide
1 Nyxborn Seaguard
2 Octopus Umbra
1 Ominous Seas
4 Phase Dolphin
1 Riptide Turtle
1 River Sneak
1 Sailor of Means
1 Sea God's Scorn
1 Sea-Dasher Octopus
1 Serpent of Yawning Depths
1 Shark Typhoon
1 Shipwreck Looter
1 Sigiled Starfish
1 Stinging Lionfish
1 Storm Fleet Spy
2 Tempest Caller
2 Thieving Otter
1 Triton Waverider
1 Vexing Gull
1 Voracious Greatshark
3 Waterknot
1 Wavebreak Hippocamp
1 Wind Strider