Chests
Here's where you'll find character cards primarily, especially those rare and new characters you'll want.
You'll get chests from winning matches, and then will have to wait for a timer to elapse before opening them, the shortest being around four hours. Yikes.
This means checking in on FRAG once a day is a good idea, but once you've filled your chest slots, there's little point in continuing until they open up - unless you're hoarding gold.
