I don't want to sound mean but yes
She is the most painful defending opponent at streak 25 and above. If you have her in your team, others may hardly win over your team when it comes to streak 26 because now her HP is twice to 6 times your characters HP, depending on your character of.So even if the enemy use all their fighters, they could never survive to deal enough damage to kill that Dreadlock. She is annoying, but her presence makes the defending team set up becomes much more challenging. At least she is not widely available though.Why?