"Even if you had three heads and six arms, never would you ever get out of my grip. "
In chinese myth stories, there's a young man from the heaven, when he's confronted with his outnumbered enimies, he can transfigured into a man who has three heads and six arms. and thus army of thousands could not be a match for him. so today, when people want to express that someone even can have three heads and six arms, he still can not escape from them. Is there similiar phrase in english? Thank you!