Your search for "duskmourn: house of horror" revealed the following:

MTG - Commander: Duskmourn: House of Horror - 051 : Metamorphosis Fanatic (Non Foil) (Borderless)

MTG - Commander: Duskmourn: House of Horror - 0391 : Overlord of the Balemurk V.2 (Foil) (Borderless)

MTG - Duskmourn: House of Horror - 237 : Undead Sprinter (Non Foil)

MTG - Playmat - Duskmourn: House of Horror - Twitching Doll - Ultimate Guard

MTG - Deck Box Sidewinder 100+ - Duskmourn: House of Horror - The Wandering Rescuer - Ultimate Guard

MTG - Deck Box Sidewinder 100+ - Duskmourn: House of Horror - Victor, Valgavoth’s Seneschal - Ultimate Guard

MTG - Deck Box Sidewinder 100+ - Duskmourn: House of Horror - Niko, Light of Hope - Ultimate Guard

MTG - Deck Box Sidewinder 100+ - Duskmourn: House of Horror - Kaito, Bane of Nightmares - Ultimate Guard

MTG - Deck Box Sidewinder 100+ - Duskmourn: House of Horror - Zimone, All-Questioning - Ultimate Guard

Strixhaven: School Of Mages - 085/275 : Promising Duskmage (Foil)

Magic The Gathering - Collectors Booster Pack - March of the Machine: The Aftermath Collector (6 Cards)

Double Masters 2022 - 142/331 : Deadly Recluse (foil)

Magic The Gathering - Marvel Super Heroes Commander Deck - Doom Prevails

Magic The Gathering - Secrets of Strixhaven Commander Deck - Prismari Artistry

MTG - Teenage Mutant Ninja Turtles: Commander - 0037 : Big Mother Mouser (Non Foil)

MTG - Teenage Mutant Ninja Turtles: Commander - 0037 : Big Mother Mouser (Surge Foil)

MTG - Innistrad: Midnight Hunt - 047/277 Delver of Secrets / Insectile Aberration (Non Foil)

MTG - Modern Horizons 3 - 083 : Chthonian Nightmare (Non Foil)

MTG - Marvel's Spider-Man - 0251 : Impostor Syndrome (Foil) (Borderless)

Dungeons & Dragons - - Nolzur's Marvelous Miniatures - Nightmare - Wave 12