Ryastraad, otherwise known as battle madness was a state of rage or berserk that members of the Calian species would enter into on certain occasions. The state of ryastraad gave the individual almost super-Human powers. Aron Peacebringer went into battle madness when he thought that Leia Organa had been killed by Imperials, and was capable of breaking the thick metal chain that he was shackled in.