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
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
Like most Magic: The Gathering cards, the value of Reality Shift depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Secret Lair Drop)
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