1 Alania's Pathmaker
1 Ambling Stormshell
1 Ancient Adamantoise
1 Angler Turtle
1 Archelos, Lagoon Mystic
1 Arixmethes, Slumbering Isle
1 Bedrock Tortoise
1 Benthic Behemoth
1 Breaching Leviathan
1 Catacomb Crocodile
1 Cold-Water Snapper
1 Crocanura
1 Daggermaw Megalodon
1 Deep-Sea Kraken
1 Denizen of the Deep
1 Dreadlight Monstrosity
1 Emperor Crocodile
5 Fish
1 Frilled Sea Serpent
1 Frost Fair Lure Fish
1 Gargantuan Leech
1 Gearseeker Serpent
1 Giant Koi
1 Gurmag Angler
1 Gyruda, Doom of Depths
1 Inkwell Leviathan
1 Kalakscion, Hunger Tyrant
1 Kederekt Leviathan
1 Kiora's Dambreaker
1 Koma, World-Eater
12 Kraken
1 Lava Serpent
4 Leviathan
2 Marit Lage
1 Monstrosity of the Lake
1 Nemesis of Reason
4 Octopus
1 Pollywog Prodigy
1 Rampaging Hippo
1 Rapid Augmenter
1 Sailors' Bane
1 Scaled Behemoth
2 Scion of the Deep
1 Scrapdiver Serpent
1 Scuttlegator
1 Serpent of the Pass
1 Serpent of Yawning Depths
1 Sewer Crocodile
6 Shark
1 Simic Sky Swallower
1 Sin, Spira's Punishment
1 Skittering Crustacean
1 Slinn Voda, the Rising Deep
1 Spawning Kraken
1 Star Whale
1 Starwinder
1 Stormtide Leviathan
1 Striped Riverwinder
1 Summon: Leviathan
1 The Terror of Serpent's Pass
1 The Unagi of Kyoshi Island
1 Thunderous Snapper
1 Tolarian Terror
1 Tromokratis
1 Twenty-Toed Toad
1 Undercover Crocodelf
1 Wardscale Crocodile
2 Whale
1 Yargle and Multani
1 Yargle, Glutton of Urborg
1 Yidaro, Wandering Monster
Sideboard: