44 cards where the illustration contains “floodpits”

Abhorrent Oculus (Duskmourn: House of Horror #42)
Bottomless Pool // Locker Room (Duskmourn: House of Horror #43)
Clammy Prowler (Duskmourn: House of Horror #45)
Creeping Peeper (Duskmourn: House of Horror #46)
Cursed Windbreaker (Duskmourn: House of Horror #47)
Daggermaw Megalodon (Duskmourn: House of Horror #48)
Enduring Curiosity (Duskmourn: House of Horror #51)
Enduring Friendship (Alchemy: Duskmourn #20)
Fear of Change (Alchemy: Duskmourn #21)
Fear of Failed Tests (Duskmourn: House of Horror #55)
Fear of Falling (Duskmourn: House of Horror #56)
Fear of Impostors (Duskmourn: House of Horror #57)
Fear of Isolation (Duskmourn: House of Horror #58)
Floodfarm Verge (Duskmourn: House of Horror #259)
Floodfarm Verge (Duskmourn: House of Horror #330)
Floodpits Drowner (Duskmourn: House of Horror #59)
Ghostly Keybearer (Duskmourn: House of Horror #61)
Gloomlake Verge (Duskmourn: House of Horror #260)
Gloomlake Verge (Duskmourn: House of Horror #331)
Inquisitive Glimmer (Duskmourn: House of Horror #217)
Island (Duskmourn: House of Horror #279)
Island (Duskmourn: House of Horror #280)
Island (Duskmourn: House of Horror #273)
Kaito, Bane of Nightmares (Duskmourn: House of Horror #328)
Lakeside Shack (Duskmourn: House of Horror #262)
Leyline of Transformation (Duskmourn: House of Horror #63)
Meat Locker // Drowned Diner (Duskmourn: House of Horror #65)
Niko, Light of Hope (Duskmourn: House of Horror #224)
Overlord of the Floodpits (Duskmourn: House of Horror #68)
Overlord of the Floodpits (Duskmourn: House of Horror #389)
Peculiar Lighthouse (Duskmourn: House of Horror #265)
Piranha Fly (Duskmourn: House of Horror #70)
Portent (Duskmourn: House of Horror Commander #74)
Primo, the Indivisible (Duskmourn: House of Horror Tokens #14)
Restricted Office // Lecture Hall (Duskmourn: House of Horror #342)
Roaring Furnace // Steaming Sauna (Duskmourn: House of Horror #230)
Roaring Furnace // Steaming Sauna (Duskmourn: House of Horror #343)
Spirit (Duskmourn: House of Horror Tokens #8)
Stalked Researcher (Duskmourn: House of Horror #73)
They Came from the Pipes (Duskmourn: House of Horror Commander #14)
Underwater Tunnel // Slimy Aquarium (Duskmourn: House of Horror #79)
Unwilling Vessel (Duskmourn: House of Horror #81)
Winter's Intervention (Duskmourn: House of Horror #123)
Zimone's Hypothesis (Duskmourn: House of Horror Commander #15)

The message was clear to Sorin—time to search for something else.