So, I know about all the cards and what they do, but I was wondering what classes I should use them on first(like what class has priority)

This is what I am thinking of so far.
Bolt: Tank
Balance: Ninja or BLM priority, any other DPS class if NIN/BLM not there
Arrow: A DPS class
Spear: Dragoon or Ninja
Ewer: any magic class with low MP(WHM priority). Tank if all magic classes are doing fine with MP
Spire: Whatever DPS is lowest on TP