...pure energy indeed
So this was why it was tagged the weakness of demons, the energy from the dagger dispelled every dark energy in the body of whosoever it was injured with. That was eventually what killed them, the dark energy was a life force to the demons, if that was lost then their lives would also be lost. She had not been in a good state the day her grandmother mother with those halflings so that is why she was just seeing it for the first time.
After seeing what happened to the man, she remembered that the dagger had also plunged into Torak arm in the last second before he was pushed away
'Does that mean that he would also die?' she thought yo herself and also hoped that it would be so, if only he would die then all her problem would be solved, with him out of the way, the equation would be balanced. She would not have to make any silly choices again, she would be free and so would Elara and the clan.
That would be a dream come true!