26 cards where the set is “dsk” and the collector number >= 302 and the collector number <= 327

Balustrade Wurm (Duskmourn: House of Horror #319)
Chainsaw (Duskmourn: House of Horror #314)
Come Back Wrong (Duskmourn: House of Horror #309)
Cursed Recording (Duskmourn: House of Horror #315)
Demonic Counsel (Duskmourn: House of Horror #310)
Entity Tracker (Duskmourn: House of Horror #307)
Fear of Missing Out (Duskmourn: House of Horror #316)
Ghostly Dancers (Duskmourn: House of Horror #302)
Ghost Vacuum (Duskmourn: House of Horror #326)
Hedge Shredder (Duskmourn: House of Horror #320)
Insidious Fungus (Duskmourn: House of Horror #321)
Marina Vendrell's Grimoire (Duskmourn: House of Horror #308)
Meathook Massacre II (Duskmourn: House of Horror #311)
Omnivorous Flytrap (Duskmourn: House of Horror #322)
Peer Past the Veil (Duskmourn: House of Horror #325)
Reluctant Role Model (Duskmourn: House of Horror #303)
Split Up (Duskmourn: House of Horror #304)
The Rollercrusher Ride (Duskmourn: House of Horror #317)
Under the Skin (Duskmourn: House of Horror #323)
Unidentified Hovership (Duskmourn: House of Horror #305)
Unstoppable Slasher (Duskmourn: House of Horror #312)
Unwanted Remake (Duskmourn: House of Horror #306)
Valgavoth's Lair (Duskmourn: House of Horror #327)
Valgavoth's Onslaught (Duskmourn: House of Horror #324)
Waltz of Rage (Duskmourn: House of Horror #318)
Withering Torment (Duskmourn: House of Horror #313)

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.