Some of my champions can’t be used to promote even though they aren’t locked. How do I unlock them?
The bounty hunter and the water boon sister that I get early on cannot be used to promote my other champions. They are locked for some reason even though they are not locked, social, or shared in my settings. They are also not set as defense on my arena team and I don't belong to a guild. How do I figure out how to unlock them?