I was thinking that Bungie could open up the door in the tower that has always been closed, and add in a library where all grimore would be visible. The walls could be bookshelves, and when you choose what card you wanted to read, a little animation of your guardian opening a book would play. I haven't put much thought into this, but I would love to see what everybody else thinks!
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That would take too much time away from re-skinning and story recycling. They can't waste valuable resources on that