1 Bloodstained Mire
1 Clearwater Pathway // Murkwater Pathway
1 Command Tower
1 Drowned Catacomb
1 Flooded Strand
4 Island
1 Misty Rainforest
1 Polluted Delta
1 Restless Reef
3 Swamp
1 Verdant Catacombs
1 Watery Grave
1 An Offer You Can't Refuse
1 Brainstorm
1 Bruvac the Grandiloquent
1 Counterspell
1 Cruel Somnophage // Can't Wake Up
1 Cut Down
1 Cyclonic Rift
1 Didn't Say Please
1 Displacement Wave
1 Dream Twist
1 Drown in the Loch
1 Drowned Secrets
1 Fae of Wishes // Granted
1 Feed the Swarm
1 Fractured Sanity
1 Fraying Sanity
1 Gadwick, the Wizened
1 Gale, Waterdeep Prodigy
1 Glimpse the Unthinkable
1 Haughty Djinn
1 Haunted One
1 Hedron Crab
1 Inquisition of Kozilek
1 Insatiable Avarice
1 Maddening Cacophony
1 Merfolk Secretkeeper // Venture Deeper
1 Power Word Kill
1 Propaganda
1 Ruin Crab
1 Sedgemoor Witch
1 Snapcaster Mage
1 Soaring Thought-Thief
1 Sphinx's Tutelage
1 Swan Song
1 Sweet Oblivion
1 Teferi's Tutelage
1 Telepathy
1 The Meathook Massacre
1 Thought Erasure
1 Thoughtseize
1 Three Steps Ahead
1 Toxic Deluge
1 Tyrant's Scorn
1 Vantress Gargoyle
1 Wall of Lost Thoughts
1 Wash Away
1 Zellix, Sanity Flayer
Sideboard:
1 Ashiok, Dream Render
1 Barrowgoyf
1 Black Sun's Zenith
1 Bontu's Last Reckoning
1 Dragon Turtle
1 Drown in Dreams
1 Eliminate
1 Elixir of Immortality
1 Errant, Street Artist
1 Finale of Eternity
1 Founding the Third Path
1 Join the Dead
1 Long Goodbye
1 Memory Erosion
1 Nephalia Drownyard
1 Phyrexian Arena
1 Pilfered Plans
1 Pteramander
1 Realmbreaker, the Invasion Tree
1 Rona, Herald of Invasion // Rona, Tolarian Obliterator
1 The Cyber-Controller
1 Thief of Sanity
1 Thought Scour
1 Windfall
1 Witch's Vengeance