@CorgiofLiu depends on what you want to do. For example:
We have Class Warrior- health 0, stamina 0
We have child class - samurai - health 200, stamina 200
We can have Ninja - health 150, stamina 150
here we need to have 1 master class and 2 child classes as BP with 2 different Skeletal meshes,
but you can make one Child class and in a Structure you can set the following:
Skeletal Mesh | Health | Stamina | Speed | whatever else
and then in the Data table set this the following way:
Samurai SkelMesh | 200 | 200 | 600 | Something
Black Samurai | 300 | 300 | 800 | Something
Ninja | 150 | 150 | 1000 | Something
Knight | 600 | 600 | 400 | Something
Then you Spawn Actor of Class and provide a new Actor with the following details from the DataTable. You need to make all variables either public and editable, or make a structure inside the class and set all variables in the Construct method
I hope you get my point. Let me know if you want more clarification.