Winter, Cynical Opportunist
A Golgari graveyard deck from Duskmourn that mills itself on purpose and cheats permanents into play. Winter, Cynical Opportunist fills the yard on attack and reanimates off graveyard variety.
Magic does the haunted house. Four decks about face-down manifests, graveyard variety, enchantment value and punishing everyone at the table.
Look at the top two cards of your library, put one onto the battlefield face down as a 2/2 and the other into your graveyard. You get a body and a graveyard card from the same trigger, which is why the Simic deck can afford to play the long game.
Delirium checks whether four or more card types are in your graveyard. Duskmourn pairs it with self mill so the condition turns on early rather than by accident.
Eerie triggers when an enchantment enters under your control or a Room door unlocks. It is the glue between the set enchantment theme and its haunted house flavor.
Rooms are split enchantments with two halves you unlock separately by paying each door cost. One card gives you two effects on different turns, which suits slow grindy games.
Duskmourn is a horror movie set inside a house that keeps growing rooms, and the mechanics follow the flavor. Manifest dread hides creatures face down, Rooms unlock in pieces, and delirium rewards a graveyard full of different card types.
The Commander decks are more traditional than the main set. Two of them are graveyard decks, one is an enchantment control deck and one is a Rakdos deck that just hurts everybody. Manifest dread is the mechanic that shows up most in the precons themselves.
Jump Scare is the best pick if you want something you have not played before. Endless Punishment is the least interactive of the four and reads that way at the table, so know your pod.
Winter, Cynical Opportunist
A Golgari graveyard deck from Duskmourn that mills itself on purpose and cheats permanents into play. Winter, Cynical Opportunist fills the yard on attack and reanimates off graveyard variety.
Valgavoth, Harrower of Souls
A Rakdos group-slug deck led by Valgavoth, Harrower of Souls, punish opponents for drawing cards and losing life, grow Valgavoth into a massive threat, and win through damage triggers that compound with every opponent action.
Zimone, Mystery Unraveler
A Simic lands-and-manifest deck from Duskmourn. Zimone, Mystery Unraveler turns every land drop into a face-down 2/2, then flips your hidden creatures for value.
Aminatou, Veil Piercer
An Esper enchantment and topdeck-manipulation deck led by Aminatou, Veil Piercer, stack the top of your library, draw the perfect answer every turn, and generate overwhelming advantage through enchantment synergies.