This golden sword that Elena had gotten was extremely strong. She was not really someone who was fixated on a single weapon or depended on the might of a weapon to win her battles. But that was exactly what was happening here.
In the current situation with most of her abilities locked, this sword provided her with an insane amount of strength.
Normally, in order to defeat the previous metal shape, she would have needed to have a long battle with it. There was also a possibility that she might not be able to withstand it's green beam attack.
But with the support of her new sword, she had ended the battle with just a single slash of her sword. So calling it overpowering wound actually be an understatement.
As soon as Elena was connected to this sword, some knowledge about it's function had appeared in her mind including the name of the sword.
