Happened after casting command on an allied champion. After casting it, my sovereign got infinite turns, which I used to make her run around slowly beating all of the enemies to death with her staff. It happened to me once, and then after that I tried to reproduce it 3 times and it worked once (for a total of 2/4). It seemed more likely to work if done later in the fight? I'm not sure.

Don't have a screenshot or save, as I didn't even know about this forum when it happened. Just recalling the event, as in my other thread.

I think the champion I was casting command on also had command, if that's important.