1 Aboleth Spawn
1 Aesi, Tyrant of Gyre Strait
1 Aetherspouts
1 Archipelagore
1 Biolume Egg // Biolume Serpent
1 Charix, the Raging Isle
1 Chasm Skulker
1 Colossal Whale
1 Crush of Tentacles
1 Dreadlight Monstrosity
1 Eaten by Piranhas
1 Elder Deep-Fiend
1 Grappling Kraken
1 Horned Loch-Whale // Lagoon Breach
1 Hullbreaker Horror
1 Icebreaker Kraken
1 Kiora, Sovereign of the Deep
1 Mirrorshell Crab
1 Monstrosity of the Lake
1 Nadir Kraken
1 Octavia, Living Thesis
1 Phase Dolphin
1 Pursued Whale
1 Ruin Crab
1 Scourge of Fleets
1 Sea Serpent
1 Segovian Leviathan
1 Shark Typhoon
1 Sharktocrab
1 Skyclave Squid
1 Slinn Voda, the Rising Deep
1 Spined Megalodon
1 Stormsurge Kraken
1 Stormtide Leviathan
1 Sword Coast Serpent // Capsizing Wave
1 Tidal Barracuda
1 Tidal Surge
1 Tidal Terror
1 Tolarian Kraken
1 Tolarian Terror
1 Trench Behemoth
1 Tromokratis
1 Voracious Greatshark
1 Waker of Waves
1 Whelming Wave
1 Wormhole Serpent
1 Xolatoyac, the Smiling Flood
Sideboard:
1 Brinelin, the Moon Kraken
1 Deep-Sea Kraken
1 Inkwell Leviathan
1 Kraken of the Straits
1 Lorthos, the Tidemaker
1 Sea-Dasher Octopus
1 Tidal Flats
1 Tidal Kraken