Thanks! That helps quite a bit. It's still vague though. Do the allies move when the hero moves or does the hero have to use energy every time just to have the ally keep up with them?
Allies never move automatically unless specified by a scenario. You have to spend a gem to activate them, moving them up to their printed movement value (and then attacking with them, if you like). As the thread mentioned above clarifies, though, you can spend additional gems to move them further.