1 Drowned Catacomb
14 Island
1 Polluted Delta
1 Sunken Hollow
1 Sunken Ruins
14 Swamp
1 Temple of Deceit
1 Underground River
1 Underground Sea
1 Watery Grave
1 Ancient Excavation
1 Apprentice Necromancer
1 Archaeomancer
1 Atris, Oracle of Half-Truths
1 Baleful Strix
1 Blood for Bones
1 Champion of Stray Souls
1 Chemister's Insight
1 Clever Impersonator
1 Countersquall
1 Curse of the Swine
1 Deadeye Navigator
1 Deep Analysis
1 Dimir Signet
1 Dragonlord Silumgar
1 Dread Return
1 Duplicant
1 Evil Twin
1 Extinction Event
1 Fact or Fiction
1 Fblthp, the Lost
1 Fortune's Favor
1 Gonti, Lord of Luxury
1 Hostage Taker
1 Illusionist's Stratagem
1 Jin-Gitaxias, Core Augur
1 Lim-Dûl's Vault
1 Lochmere Serpent
1 Massacre Wurm
1 Mire Triton
1 Monstrous War-Leech
1 Negate
1 Noxious Gearhulk
1 Panharmonicon
1 Pull from Tomorrow
1 Ravenous Chupacabra
1 Sire of Stagnation
1 Spark Double
1 Stunt Double
1 Talisman of Dominance
1 Teferi's Time Twist
1 Thassa, Deep-Dwelling
1 Treasure Cruise
1 Vela the Night-Clad
1 Watcher for Tomorrow
1 Whip of Erebos
Sideboard:
1 Gyruda, Doom of Depths