Here's a small box that can hold your Warcry warband. The box consists of the main body, a lid, and two inserts. One insert is meant for unit cards, the other one is meant for the minis.
The unit insert can be magnetized. Simply glue a thin piece of metal plate, or a special magnetic paper, to the floor, and then magnetize your minis.
The lid can be printed in two colors using a filament change on specific layer hight (this can be set up in your Slicer).
The lid and the box have holes for small magnets. The holes are pretty tight, so you may not even have to glue the magnets in.
The cards case should be printed vertically. Use a brim in your slicer.
