League of Legends Champion Zed

Utterly ruthless and without mercy, Zed is the leader of the Order of Shadow, an organization he created with the intent of militarizing Ionia’s martial arts traditions to drive out Noxian invaders. During the war, desperation led him to unlock the secret shadow form—a malevolent spirit magic as dangerous and corrupting as it is powerful. Zed has mastered all of these forbidden techniques to destroy anything he sees as a threat to his nation, or his new order. 

An orphan, Zed was taken in and trained by a great ninja master. Only one other student appeared to be Zed's equal - the master's son, Shen. It seemed Zed could never win the favor of the master, as every match between the rivals ended in a draw. Frustrated and jealous, he sought an advantage. The young ninja ventured into a sealed part of the clan's temple, where he found an ornate, foreboding box. Sensing the dark knowledge within, Zed knew he should not open it, but he peered inside nonetheless. In an instant, shadows touched his mind, revealing techniques that had long been hidden. Now armed with a secret edge, he challenged Shen, and this time he defeated the master's son. He expected praise and recognition in his moment of victory, but somehow the master knew Zed had used forbidden ways, and banished him. source