Duskmourn: House of Horror

Balustrade Wurm | Creature | Wurm | This spell can't be countered. Trample, haste Delirium — {2}{G}{G}: Return Balustrade Wurm 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. | Maxime Minard

Bashful Beastie | Creature | Beast | When Bashful Beastie dies, manifest dread. (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.) | Aaron Miller

Overlord of the Hauntwoods | Enchantment Creature | Avatar Horror | Impending 4—{1}{G}{G} (If you cast this spell for its impending cost, it enters with four time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.) Whenever Overlord of the Hauntwoods enters or attacks, create a tapped colorless land token named Everywhere that is every basic land type. | Tiffany Turrill

Rootwise Survivor | Creature | Human Survivor | Haste Survival — At the beginning of your second main phase, if Rootwise Survivor is tapped, put three +1/+1 counters on up to one target land you control. That land becomes a 0/0 Elemental creature in addition to its other types. It gains haste until your next turn. | Joseph Weston

Marina Vendrell | Legendary Creature | Human Warlock | When Marina Vendrell enters, reveal the top seven cards of your library. Put all enchantment cards from among them into your hand and the rest on the bottom of your library in a random order. {T}: Lock or unlock a door of target Room you control. Activate only as a sorcery. | Magali Villeneuve