In Tales of Arise, you need to setup the character you use in combat, and there are many people asking how to setup, just read the guide below.
Keyboard
Press ESC to open Menu
Press E to Edit Party
Press E to Edit Party
Select the character you want to use in combat
Press F to confirm
If the character has the pink flag on it, means it was done correctly.

Xbox Controller
Open Menu
Press RB to Edit Party
Press RB to Edit Party

Select the character you want to use in combat
Press X to confirm
If the character has the pink flag on it, means it was done correctly.
