Duskmourn: House of Horror

Appendage Amalgam | Enchantment Creature | Horror | Flash Whenever Appendage Amalgam attacks, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) | Bartek Fedyczak

Come Back Wrong | Sorcery | | Destroy target creature. If a creature card is put into a graveyard this way, return it to the battlefield under your control. Sacrifice it at the beginning of your next end step. | David Auden Nash

Commune with Evil | Sorcery | | Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard. You gain 3 life. | Ovidio Cartagena

Cracked Skull | Enchantment | Aura | Enchant creature When Cracked Skull enters, look at target player's hand. You may choose a nonland card from it. That player discards that card. When enchanted creature is dealt damage, destroy it. | Mirko Failoni

Killer's Mask | Artifact | Equipment | When Killer's Mask enters, manifest dread, then attach Killer's Mask to that creature. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.) Equipped creature has menace. Equip {2} | Wero Gallo

Murder | Instant | | Destroy target creature. | Domenico Cava

Popular Egotist | Creature | Human Rogue | {1}{B}, Sacrifice another creature or enchantment: Popular Egotist gains indestructible until end of turn. Tap it. (Damage and effects that say "destroy" don't destroy it.) Whenever you sacrifice a permanent, target opponent loses 1 life and you gain 1 life. | Julia Metzger

Resurrected Cultist | Creature | Human Cleric | Delirium — {2}{B}{B}: Return Resurrected Cultist from your graveyard to the battlefield with a finality counter on it. Activate only if there are four or more card types among cards in your graveyard and only as a sorcery. (If a creature with a finality counter on it would die, exile it instead.) | Tyler Walpole

Unstoppable Slasher | Creature | Zombie Assassin | Deathtouch Whenever Unstoppable Slasher deals combat damage to a player, they lose half their life, rounded up. When Unstoppable Slasher dies, if it had no counters on it, return it to the battlefield tapped under its owner's control with two stun counters on it. | Maxime Minard

Withering Torment | Instant | | Destroy target creature or enchantment. You lose 2 life. | Inkognit

Victor, Valgavoth's Seneschal | Legendary Creature | Human Warlock | Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, surveil 2 if this is the first time this ability has resolved this turn. If it's the second time, each opponent discards a card. If it's the third time, put a creature card from a graveyard onto the battlefield under your control. | Jeremy Wilson

Fear of Infinity | Enchantment Creature | Nightmare | Flying, lifelink Fear of Infinity can't block. Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, you may return Fear of Infinity from your graveyard to your hand. | Fernando Falcone

Sawblade Skinripper | Creature | Human Assassin | Menace {2}, Sacrifice another creature or enchantment: Put a +1/+1 counter on Sawblade Skinripper. At the beginning of your end step, if you sacrificed one or more permanents this turn, Sawblade Skinripper deals that much damage to any target. | Zezhou Chen

Haunted Screen | Artifact | | {T}: Add {W} or {B}. {T}, Pay 1 life: Add {G}, {U}, or {R}. {7}: Put seven +1/+1 counters on Haunted Screen. It becomes a 0/0 Spirit creature in addition to its other types. Activate only once. | Sean Murray