Hi everyone, I understand that the game is a two players game and it comes with 4 characters.  It says that everybody have access to the same card but what happens if I use a card for one character...  is there multiple copies of each card so I can use it with other character or if I use it for one character the card is lost then if I want to play with a friend he needs a copy of the game and I need a copy of the game to be able to use same cards ? 

And is there a limit of how many times a card can be in the spell books ?

Thank community for clarifying these details for me !

Let's the war begins !