Korza was originally a scholar in Ko-Koro. He was chosen by Turaga Seihu when he fought Draku's minions as they invaded Ko-Koro. He's cool but quiet, so quiet that his team mates often don't know how to interact with him. Despite that, he shows that he loves and wants to protect his friends. He uses the Frost Forks, which are like a pair of Sai. He can trap a blade between it's prongs.
Korza's Frost Forks
His weapons are based off of the Sai (http://en.wikipedia.org/wiki/Sai_(weapon))