1 Acquisition Octopus
1 Ascendant Spirit
1 Atemsis, All-Seeing
1 Audacious Thief
1 Baleful Strix
1 Body of Knowledge
1 Brainstorm
1 Brinelin, the Moon Kraken
1 Cancel
1 Cast Down
1 Commit // Memory
1 Confounding Conundrum
1 Consider
1 Cosima, God of the Voyage // The Omenkeel
1 Deliberate
1 Depart the Realm
1 Didn't Say Please
1 Egon, God of Death // Throne of Death
1 Ertai's Scorn
1 Foulmire Knight // Profane Insight
1 Frozen Aether
1 Gadwick, the Wizened
1 Hero's Downfall
1 Hinder
1 Hullbreaker Horror
1 Icebreaker Kraken
1 Idle Thoughts
1 Last Thoughts
1 Lethargy Trap
1 Lochmere Serpent
1 Mana Drain
1 Military Intelligence
1 Murder
1 Nadir Kraken
1 Negate
1 Notion Thief
1 Octoprophet
1 Opt
1 Phyrexian Arena
1 Reconnaissance Mission
1 Rewind
1 Run Aground
1 Run Ashore
1 Runo Stromkirk // Krothuss, Lord of the Deep
1 Saw It Coming
1 Scourge of Fleets
1 Scrapdiver Serpent
1 Sea-Dasher Octopus
1 Serpent of Yawning Depths
1 Slinn Voda, the Rising Deep
1 Soul Manipulation
1 Stormtide Leviathan
1 Teferi's Ageless Insight
1 Thing in the Ice // Awoken Horror
1 Tolarian Kraken
1 Tromokratis
1 Urza's Rebuff
1 Vampiric Tutor
1 Vesuvan Duplimancy
1 Wash Away
1 Wrexial, the Risen Deep
Sideboard: