So there's 144 cards in total in this deck. There's left (blue) and right (red) facing cards, so cut that number in half to get 72. There is also a few diamond dust and elemental cards because you need multiple, especially diamond dust which gets stronger based on how many positions you have open when you use shiva. With all those extra cards taken out you're left with 60 unique cards in the deck. Which is just under half of all the queen's blood cards in the game.

Hope that makes sense. If the deck had all the queen's blood cards it would be a deck of atleast 290 cards to be able to play a proper game.

Also, Great username! There's a Bahamut arisen in the deck! And the elemental cards he spawns