20 Island
1 Altar of the Pantheon
2 Brine Giant
1 Callaphe, Beloved of the Sea
1 Chain to Memory
2 Deny the Divine
1 Elite Instructor
2 Glimpse of Freedom
4 Ichthyomorphosis
1 Jace, Wielder of Mysteries
3 Nadir Kraken
3 Naiad of Hidden Coves
3 Nyxborn Seaguard
1 Omen of the Sea
1 One with the Stars
3 Riptide Turtle
1 Sage of Mysteries
1 Sea God's Scorn
1 Shimmerwing Chimera
1 Shoal Kraken
2 Sleep of the Dead
2 Starlit Mantle
2 Stern Dismissal
1 Stinging Lionfish
2 Sweet Oblivion
1 Thassa, Deep-Dwelling
1 Thassa's Oracle
1 Thirst for Meaning
1 Threnody Singer
2 Thryx, the Sudden Storm
1 Towering-Wave Mystic
1 Triton Waverider
2 Wavebreak Hippocamp
1 Whirlwind Denial
Sideboard:
3 Tentacle