Leviathan

Creature — Leviathan

Kederekt Leviathan

Creature — Leviathan

Summon: Leviathan

Enchantment Creature — Saga Leviathan

Thing from the Deep

Creature — Leviathan

Kiora's Dambreaker

Creature — Leviathan

Llawan, Cephalid Empress

Legendary Creature — Octopus Noble

Great Whale

Creature — Whale

Thelon's Curse

Enchantment

Rhystic Deluge

Enchantment

Jokulmorder

Creature — Leviathan

Tempest Caller

Creature — Merfolk Wizard

Atlantis Attacks

Sorcery

Tolarian Kraken

Creature — Kraken

Unctus, Grand Metatect

Legendary Artifact Creature — Phyrexian Vedalken

Stormtide Leviathan

Creature — Leviathan

Pursued Whale

Creature — Whale

Inkwell Leviathan

Artifact Creature — Leviathan

Trench Behemoth

Creature — Kraken

Aboshan, Cephalid Emperor

Legendary Creature — Octopus Noble

Lorthos, the Tidemaker

Legendary Creature — Octopus

Breaching Hippocamp

Creature — Horse Fish

Serpent of Yawning Depths

Enchantment Creature — Serpent

Waker of Waves

Creature — Whale

Endbringer

Creature — Eldrazi

Labyrinth Minotaur

Creature — Minotaur

Riptide

Instant

Sunstrike Legionnaire

Creature — Human Soldier

Gulf Squid

Creature — Squid Beast

Kefnet's Monument

Legendary Artifact

Scourge of Fleets

Creature — Kraken

Tidebinder Mage

Creature — Merfolk Wizard