This question came up, I was the OL and a friend was playing Ashirian. She moved beside a group of 3 goblin archers, then stated that they could no longer perform any actions, her reasoning behind it was the card was misleading which explains stunned effect. It says on the card "Discard this card or token. This is the only action you may perform on your turn while you have this card or token." The group agreed with her saying that my goblins lost both actions and can only use the action to remove it, thus permalocking my goblins in place for the duration of the encounter. I argued that they use their first action to remove the stun, then it gives them back the ability to use their 2nd action since the card is now gone.
Was I right or were they right? If they were then Ashirian's hero power is way to OP as she sat beside the group of goblins the entire encounter and there was nothing I could do.