The idea is to usually summon Knight after GEPD is in your GY to end on Photon Lord or another Rank 8
This gives it value in a huge range of archetypes, from Aristocrats, to Blink, and even more surprising decks like Landfall
Prismatic Ultimate Rare (UtR) : Etched foil pattern unique to Rarity Collection sets
Cards that generate tokens can also be a big benefit
Investigators Journal Mazemind Tome saw a lot of play throughout its time in Standard and while Investigator's Journal is not guaranteed to draw three cards each time, in certain matchups it can potentially do more than that
The Secret Lair contained: 1 alt-art Arahbo, Roar of the World 1 alt-art Leonin Warleader 1 alt-art Mirri, Weatherlight Duelist 1 alt-art Qasali Slingers 1 alt-art Regal Caracal 2 alt-art Cat tokens Cats Are Better Than Dogs Secret Lair In 2025, Wizards decided to put cats and dogs to the ultimate test with rivaling Secret Lair Drops: Cats Are Better Than Dogs and Dogs Are Better Than Cats