1 Ancient Tomb
1 Command Tower
1 Dark Depths
1 Detection Tower
1 Drowned Catacomb
1 Duskmantle, House of Shadow
8 Island
1 Nephalia Drownyard
1 Polluted Delta
1 Port of Karfell
1 Prismatic Vista
1 River of Tears
1 Sunken Hollow
1 Sunken Ruins
6 Swamp
1 Tainted Isle
1 Thespian's Stage
1 Underground River
1 Underground Sea
1 Vesuva
1 Watery Grave
1 Arcane Denial
1 Arcane Signet
1 Bident of Thassa
1 Chasm Skulker
1 Command the Dreadhorde
1 Consuming Aberration
1 Counterspell
1 Court of Cunning
1 Crush of Tentacles
1 Dark Deal
1 Dark Ritual
1 Dimir Signet
1 Dreamborn Muse
1 Echo of Eons
1 Evil Twin
1 Extract from Darkness
1 Fellwar Stone
1 Fleet Swallower
1 Fractured Sanity
1 Glasspool Mimic // Glasspool Shore
1 Grazilaxx, Illithid Scholar
1 Guiltfeeder
1 In Garruk's Wake
1 Jace, Vryn's Prodigy // Jace, Telepath Unbound
1 Jwari Disruption // Jwari Ruins
1 Lazav, Dimir Mastermind
1 Lightning Greaves
1 Maddening Cacophony
1 Malakir Rebirth // Malakir Mire
1 Mask of Riddles
1 Mesmeric Orb
1 Mind Flayer
1 Mind Stone
1 Mind's Dilation
1 Mindcrank
1 Mirko Vosk, Mind Drinker
1 Narset, Parter of Veils
1 Narset's Reversal
1 Nemesis of Reason
1 Nezahal, Primal Tide
1 Notion Thief
1 Ornithopter of Paradise
1 Phenax, God of Deception
1 Prismatic Lens
1 Psychic Corrosion
1 Psychic Possession
1 Ruin Crab
1 Sepulchral Primordial
1 Sheoldred, Whispering One
1 Sire of Stagnation
1 Sol Ring
1 Soul Manipulation
1 Spawning Kraken
1 Stormsurge Kraken
1 Strionic Resonator
1 Sword of Body and Mind
1 Sword of Hearth and Home
1 Sword of the Animist
1 Syphon Mind
1 Talisman of Dominance
1 Teferi's Veil
1 Toxic Deluge
1 Tyrant's Scorn
1 Wayfarer's Bauble
1 Whispering Madness
1 Windfall
1 Wrexial, the Risen Deep
Sideboard:
1 Drown in the Loch
1 Fetid Pools
1 Flooded Woodlands
1 Quicksilver Fountain
1 Riddlekeeper
1 Sea's Claim
1 Spreading Seas
1 Thada Adel, Acquisitor
1 Whelming Wave
1 Wight of Precinct Six