This wasn't what Andromeda had meant at all. She hadn't wanted to have to fight Lucius - despite everything, she'd pretty much grown up with the man around, and had even been engaged to him for a bit before she'd decided to run off with Teddy. And now, he was bleeding profusely, hit by his OWN hex.
This wasn't what was supposed to happen. But then, what had she really expected from all of this?
Finally, she found the ability to move, and just as she was about to try and help (despite her best interests), Narcissa bloody appeared out of nowhere, and Andromeda was once again shocked into inaction.
There was nothing she could say and nothing she could do to help this situation.
Nothing at all. And it made her feel as helpless as she had the day Teddy had died.