Responses
If my memory serves me right, her powers only work if she can speak(?) and she was gagged so that was a no-go. She's also immortal though, so I guess she could've just run the sword through and let herself heal later...
Why Dia never use her power? She could kill people with single word but she let herself abused repeatedly by humans, and can't even freed herself from the kidnapper. Is she a pacifist or something? Or her power only awakened when she is mad like hulk?