1 Cabal Coffers
1 Clearwater Pathway // Murkwater Pathway
1 Command Beacon
1 Command Tower
1 Drowned Catacomb
1 Fetid Pools
10 Island
1 Morphic Pool
1 Nephalia Drownyard
1 Path of Ancestry
1 Polluted Delta
1 Reliquary Tower
1 Rogue's Passage
1 Shipwreck Marsh
9 Swamp
1 Temple of Deceit
1 Temple of the False God
1 Terramorphic Expanse
1 Urborg, Tomb of Yawgmoth
1 Watery Grave
1 Aboleth Spawn
1 Altar of the Brood
1 Arcane Signet
1 Black Market
1 Black Market Connections
1 Brainstealer Dragon
1 Captain N'ghathrod
1 Chasm Skulker
1 Commander's Sphere
1 Consuming Aberration
1 Counterspell
1 Cyclonic Rift
1 Damnation
1 Dauthi Horror
1 Didn't Say Please
1 Dimir Signet
1 Drown in the Loch
1 Elder Brain
1 Endless Evil
1 Feed the Swarm
1 Fleet Swallower
1 Fractured Sanity
1 Geth, Lord of the Vault
1 Grazilaxx, Illithid Scholar
1 Grell Philosopher
1 Grisly Spectacle
1 Guiltfeeder
1 Herald's Horn
1 Hullbreaker Horror
1 Hunted Horror
1 Illithid Harvester // Plant Tadpoles
1 Infernal Grasp
1 Intellect Devourer
1 Jace, Memory Adept
1 Kindred Discovery
1 Krydle of Baldur's Gate
1 Maddening Cacophony
1 Mana Drain
1 Mind Flayer
1 Mindcrank
1 Mindleech Mass
1 Nemesis of Reason
1 Overcharged Amalgam
1 Phenax, God of Deception
1 Ravenous Chupacabra
1 Rhystic Study
1 Sewer Nemesis
1 Shadow Kin
1 Sludge Monster
1 Sol Ring
1 Solemn Simulacrum
1 Spellskite
1 Strionic Resonator
1 Sword of Body and Mind
1 Thought Vessel
1 Thran Dynamo
1 Toxrill, the Corrosive
1 Uchuulon
1 Urza's Incubator
1 Visions of Beyond
1 Whispersilk Cloak
1 Wrexial, the Risen Deep
1 Zellix, Sanity Flayer
Sideboard:
1 Umbris, Fear Manifest