For the same reason, I think that makes it harder for old fans of the show/card game to get back into it
It has a very relevant creature type, a decent stat line, and evasion, and offers a nice stax effect by putting the brakes on any activated abilities that other players may be counting on
Not only to better protect the card, but also to have the value and authenticity officially established
These are: Traveling Chocobo (Black) - Borderless, Japanese exclusive: cheapest listing for $7,500 on TCGPlayer, $12,120 average listing Cloud, Midgar Mercenary - Pro Tour Promo: cheapest listing for $800 on TCGPlayer, $3,775 average listing MTG's Most Expensive Modern Cards Explained Although they are both very rare, these are not "unique" cards, in the sense that multiple copies were printed very recently, and they are in someone's possession
As Duskmourn: House of Horror is based on Betrayal at House on a Hill, a game in which one or more players will betray their party and seek to destroy them (as the opposing players must defeat the betrayer), this slotted perfectly inline with Archenemy's mechanics