IRL, these cards are not distinguished from each other. A deck of tarot cards contains all the major and all the minor arcana together.
In game, because you can't shuffle these two decks together, you can't give a proper tarot reading using only the coded cards.
Additionally, the Major Arcana are missing their numbers.
I'm not sure if it's a coded thing where like, because the major arcana and minor arcana cards have different attributes, they can't be combined? There should be a way to shoe-horn them together, like making them all the same kind of object and the major arcana use the card's name for the suit and the card's number for the value.
For reference, here are the correct card numbers for the major arcana:
0 Fool
I Magician
Ii High Priestess
III Empress
IV Emperor
V Hierophant
VI Lovers
VII Chariot
VIII Strength
IX Hermit
X Wheel of Fortune
XI Justice
XII Hanged Man
XIII Death
XIV Temperance
XV Devil
XVI Tower
XVII Star
XVIII Moon
XIX Sun
XX Judgement
XXI World
