Magic the Gathering - Duskmourn House of Horror Commander Deck : Jump Scare!

Each deck introduces 10 never-before-seen Commander cards to Magic: The Gathering. New Duskmourn: House of Horror Commander cards with the DSC set code and numbered 1–40 (and their alternative versions numbered 41–67) are permitted in the Commander, Legacy, and Vintage formats. Returning cards with the DSC set code and numbered 68–327 and 368–373 are legal for play in any format where a card with the same name is permitted.[3] The latter six cards are the promos that appear in the Nightmare Bundle. The schemes (#328-367) are only playable in the Archenemy format.

Several reprints in the Commander decks have new art, some of which is suited to the Duskmourn theme:

Aminatou's Augury
Arcane Signet
Ash Barrens
Beast Within
Bedevil
Blood Pact
Blood Seeker
Cackling Counterpart
Citanul Hierophants
Command Tower
Deathreap Ritual
Diabolic Vision
Grapple with the Past
Growth Spiral
Lightning Greaves
Mesa Enchantress
Mogis, God of Slaughter
Moldgraf Monstrosity
Moon-Blessed Cleric
Night's Whisper
Ponder
Portent
Putrefy
Sol Ring
Suspicious Bookcase
Telling Time
Terminus
Utter End
Archenemy
As a special feature, these Commander decks feature Archenemy cards (#328-367).[2][4] Archenemy is a optional opt-in way to play Commander, and the decks work completely fine outside of Archenemy.

To help reimagine Archenemy for Commander play, R&D made some tweaks to how Archenemy works.[2]

Traditionally, the way that Archenemy has worked with 60-card decks is that the archenemy has 40 life and each of the players has 20. But in Commander, you already start with 40 life. There was also one thing about Archenemy that's always been a bit more a bug than a feature. Because each of the three heroes had their life total, the strategically best thing to do was to take down one player as quickly as possible. But that's not the most fun thing to do. For one, it picks on one player and then leaves that player on the sidelines for the rest of the game.

So, after a lot of iteration from Annie Sardelis and her team, they came up with this rules tweak that helps it play smoothly: the archenemy has 60 life. And the entire hero team also has 60 life. They all win or lose together. While the archenemy still chooses who they attack for any effects where it matters because any of the heroes can block, it becomes a lot more straightforward: the archenemy attacks heroes, and the heroes attack the archenemy, each group with one shared life total.

This does mean a few older schemes function weirdly, such as Mortal Flesh Is Weak. It is recommended to not use those schemes and to play the new shared life going forward. (With 40 and 40 for one on one and 60 and 60 for Commander life totals).

One other small tweak is that you only need 10 schemes to play. Additionally, unlike Archenemy: Nicol Bolas, these decks are built so any of the decks can be the archenemy.

Contents
Each package contains[5]:

1 foil Commander
1 additional foil Legendary card
98 regular cards
10 Scheme cards
10 double-sided tokens
1 helper card
1 deck box
1 Collector Booster Sample Pack (2 cards)