Well, her birth from an orc and a draenei is fundamental. It led to her being rejected by both races. Her training as an assassin meant she was often used for others' purposes. She was involved in the power plays between the orcish Horde and the humans. For instance, she was used to gather intelligence during the war. Her relationship with Medivh was also a significant part of her story. He was a powerful figure, and their connection had far - reaching consequences for the world she was in.
One key element is her mixed heritage. Being half - orc and half - draenei set her apart and made her an outsider. Another is her role as a spy and assassin. This put her in the middle of many power struggles. Also, her relationships, like with Medivh, were important. They were complex relationships that influenced the events around them.