Duskmourn: House of Horror Promo Pack has no variants:
Explore this pack in Sealed.

Sheets

Sheet seasonal

At rate 1/60 (1.67%)
Balustrade Wurm
Blazemire Verge
Central Elevator
Chainsaw
Come Back Wrong
Cursed Recording
Dazzling Theater
Demonic Counsel
Dissection Tools
Doomsday Excruciator
Enduring Courage
Enduring Curiosity
Enduring Innocence
Enduring Tenacity
Enduring Vitality
Entity Tracker
Fear of Missing Out
Floodfarm Verge
Ghost Vacuum
Ghostly Dancers
Gloomlake Verge
Grievous Wound
Hedge Shredder
Hushwood Verge
Kona, Rescue Beastie
Leyline of Hope
Leyline of Mutation
Leyline of Resonance
Leyline of Transformation
Leyline of the Void
Marina Vendrell
Marina Vendrell's Grimoire
Marvin, Murderous Mimic
Nashi, Searcher in the Dark
Omnivorous Flytrap
Peer Past the Veil
Razorkin Needlehead
Reluctant Role Model
Restricted Office
Rip, Spawn Hunter
Roaring Furnace
Silent Hallcreeper
Split Up
The Jolly Balloon Man
The Mindskinner
The Swarmweaver
The Tale of Tamiyo
Thornspire Verge
Toby, Beastie Befriender
Twitching Doll
Undead Sprinter
Unholy Annex
Unidentified Hovership
Unstoppable Slasher
Valgavoth's Lair
Valgavoth's Onslaught
Victor, Valgavoth's Seneschal
Waltz of Rage
Winter, Misanthropic Guide
Zimone, All-Questioning

Sheet curated

At rate 1/121 (0.83%)
Abhorrent Oculus
Adeline, Resplendent Cathar
Agatha's Soul Cauldron
Alania, Divergent Storm
Ancient Greenwarden
Annie Joins Up
Aurelia, the Law Above
Baylen, the Haymaker
Beseech the Mirror
Bloodletter of Aclazotz
Braids, Arisen Nightmare
Breeches, the Blastmaker
Burn Down the House
By Invitation Only
Camellia, the Seedmiser
Chandra, Hope's Beacon
Charred Foyer
Chimil, the Inner Sun
Clement, the Worrywort
Consuming Blob
Coveted Falcon
Deadly Cover-Up
Decadent Dragon
Demonic Bargain
Diabolic Intent
Dollhouse of Horrors
Dollmaker's Shop
Double Down
Dragonhawk, Fate's Tempest
Eriette, the Beguiler
Expedited Inheritance
Finneas, Ace Archer
Forsaken Monument
Funeral Room
Get Lost
Gev, Scaled Scorch
Ghalta and Mavren
Ghalta, Stampede Tyrant
Gix, Yawgmoth Praetor
Hallowed Haunting
Hauntwoods Shrieker
Homicide Investigator
Hullbreaker Horror
Inti, Seneschal of the Sun
Investigator's Journal
Kaito, Bane of Nightmares
Kastral, the Windcrested
Kellan Joins Up
Kitsa, Otterball Elite
Krenko, Baron of Tin Street
Lamplight Phoenix
Liberator, Urza's Battlethopter
Lich-Knights' Conquest
Liliana of the Veil
Lunar Convocation
Mabel, Heir to Cragflame
Maddening Cacophony
Marchesa, Dealer of Death
Massacre Girl, Known Killer
Meathook Massacre II
Mirrex
Mirror Room
Mondrak, Glory Dominus
Mosswood Dreadknight
Muerra, Trash Tactician
Niko, Light of Hope
Niv-Mizzet, Guildpact
No Witnesses
Oko, the Ringleader
Old Stickfingers
Overlord of the Balemurk
Overlord of the Boilerbilges
Overlord of the Floodpits
Overlord of the Hauntwoods
Overlord of the Mistmoors
Ozolith, the Shattered Spire
Path of Peril
Phyrexian Arena
Plaza of Heroes
Preacher of the Schism
Rakdos Joins Up
Ral, Crackling Wit
Regal Bunnicorn
Roaming Throne
Scalding Viper
Scourge of the Skyclaves
Screaming Nemesis
Skyclave Apparition
Skyclave Shade
Slogurk, the Overslime
Stalactite Stalker
Subterranean Schooner
Sunfall
Syr Ginger, the Meal Ender
Taii Wakeen, Perfect Shot
Tarrian's Soulcleaver
The Apprentice's Folly
The Cruelty of Gix
The Gitrog, Ravenous Ride
The Huntsman's Redemption
The Infamous Cruelclaw
The Meathook Massacre
The Rollercrusher Ride
The Wandering Rescuer
Thunderous Debut
Tinybones, the Pickpocket
Tishana's Tidebinder
Tocasia's Welcome
Trostani, Three Whispers
Trumpeting Carnosaur
Tyvar, the Pummeler
Unnatural Growth
Valgavoth, Terror Eater
Vanquish the Horde
Venerated Rotpriest
Virtue of Persistence
Vraska Joins Up
Vren, the Relentless
Walk-In Closet
Warleader's Call
Zoraline, Cosmos Caller

Sheet dark_frame

At rate 1/5 (20.0%)
Drag to the Roots
Inquisitive Glimmer
Pyroclasm
Shardmage's Rescue
Valgavoth's Faithful