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You have a partner follow you around, and as you go around the campus day after day dueling people, your parter,'s heart meter starts increaseing, and when it increases to the point where an entire heart is maxed out, you get a story scene
If this Set card is destroyed: You can target 1 of your "Black Rose Dragon", or 1 monster that mentions it, that is banished or in your GY
Since there is a time lag, that is the main usage
The upside to using the story deck is they totally ignore the restrictions of the Forbidden and Limited list, letting you sometimes use multiple copies of some of the most powerful banned cards in the game, such as Pot of Greed
Cards that have survived in perfect condition (PSA 10) are even rarera factor that drives prices to astronomical heights