"I figured out the runes. I thought of seven, so you'll have to come up with two more." Draco told Potter. "Pertho - chance, Algiz - protection, Sowilo - success, Tiwaz - battle / justice, Ehwaz - bond / unit (love?), Othila - family, Dagaz - transformation, but those will have to be powered with the blood of the person representing it." 