Trick her

With a submitting look you get to your knees and crawl to the renegade elf woman. Carefully you kiss her feet. The elf smiles satisfied.

“How pathetic,” she says arrogant, “I knew you human scum has neither pride nor strength. Seems like you are even worse than I thought. I am not sure if you deserve the honor to be a **** to a goddess like me. Maybe I sell you.”

The elf grins arrogant and pets your head. This is enough for you to take action. Faster than she can react you grab her arm and twist it until it is about to break. She screams in pain and tries to throw a fireball at you. For that she uses the arm you already have because the other arm is still keeping up the magic shield. But you hold her arm away from you and aim at the other elf who wants to help his companion. Her fireball hits him in the chest and turns him in a piece of coal.

“No, stop it!” the elf begs under tears, “you hurt me.”

“You want to rule over human?” you ask angry, “you are so dumb and fragile. Remove your shield and give me your bra!”

“I will,” the elf cries and the magic shield disappears.

Your archers use this chance and immediately shoot at all enemies who lost their protection. More than two dozen goblins, six human, three orcs and a renegade dwarf go down in the hail of arrows. The elf in your grip doesn't dares to use her magic against you. Instead she reaches under her leather armor and removes her bra. You use it to tie her hands together at her back. Then you give her exposed nipples a last good squeeze to make her understand her place and leave.