Permanent. Limit 1 per deck. Cannot be purchased during The Scarlet Keys campaign.

When you purchase Reliquary of Keys, add 1 copy of Paradimensional Interloper to your deck. It does not count towards your deck size. Then, search your collection for a key and record in your campaign log that "(your investigator name) is the bearer of (chosen key)".

Forced — When the game begins: Search your collection for your chosen key and attach it to your investigator.