so this is my first suggestion, it is also translated with google in case of errors
So the previous card system was "canceled" due to general problems with its obtaining, so I propose this.
The cards will be unlocked for use in solo play as well as in multiplayer as you unlock them in their respective campaign mode, of course there are still a couple of problems with this, such as the generals since you do not unlock their cards in campaign mode (although they could easily make that card unlocked once you play the final boss of the chapter where you are generally accompanied by a general) and that there is no chaos campaign where you can unlock their respective cards, but still So it seems to me to be a much more effective and easier way to understand and do than any other, it would only be necessary to see how to unlock the chaos cards while your campaign has not been released and that's it.
First of all, I appreciate your time reading, I will be reading your opinions.

u have a point