1 Bojuka Bog
1 Choked Estuary
1 Clearwater Pathway // Murkwater Pathway
1 Darkslick Shores
1 Darkwater Catacombs
1 Dimir Aqueduct
1 Drowned Catacomb
1 Drownyard Temple
1 Hostile Hostel // Creeping Inn
5 Island
1 Mortuary Mire
1 Nephalia Drownyard
1 Port of Karfell
1 River of Tears
1 Shipwreck Marsh
1 Sunken Hollow
1 Sunken Ruins
6 Swamp
1 Tainted Isle
1 Takenuma, Abandoned Mire
1 Temple of Deceit
1 Underground River
1 Watery Grave
1 Witch's Cottage
1 Aboleth Spawn
1 Altar of Dementia
1 Arcane Signet
1 Ashiok, Dream Render
1 Ashiok, Nightmare Muse
1 Braids, Arisen Nightmare
1 Brainstealer Dragon
1 Cackling Counterpart
1 Captain N'ghathrod
1 Commander's Sphere
1 Consuming Aberration
1 Corpseweft
1 Counterspell
1 Court of Cunning
1 Crippling Fear
1 Cruel Somnophage // Can't Wake Up
1 Cut Your Losses
1 Dauthi Voidwalker
1 Defiler of Flesh
1 Didn't Say Please
1 Dusk Mangler
1 Elder Brain
1 Endless Evil
1 Eternal Scourge
1 Extinction Event
1 Falthis, Shadowcat Familiar
1 Fleshwrither
1 Fractured Sanity
1 Geralf's Mindcrusher
1 Gravestorm
1 Grell Philosopher
1 Hell's Caretaker
1 Helm of the Host
1 Imperious Mindbreaker
1 Imprisoned in the Moon
1 Laquatus's Champion
1 Leyline of the Void
1 Maddening Cacophony
1 Mind Flayer
1 Mind Funeral
1 Mind Grind
1 Mindcrank
1 Mindleech Mass
1 Mirko Vosk, Mind Drinker
1 Mist of Stagnation
1 Nemesis of Reason
1 Nightmare Shepherd
1 Nightmare Unmaking
1 Panharmonicon
1 Phyrexian Revoker
1 Planar Void
1 Profane Transfusion
1 Quasiduplicate
1 Sludge Monster
1 Sol Ring
1 Soul-Guide Lantern
1 Spellskite
1 Tasha's Hideous Laughter
1 Thing in the Ice // Awoken Horror
1 Thought Collapse
1 Toxrill, the Corrosive
1 Trepanation Blade
1 Uchuulon
1 Umbris, Fear Manifest
1 Void Maw
1 Web of Inertia
1 Zellix, Sanity Flayer
Sideboard:
1 Doom Weaver