Baku was chosen by Turaga Seihu when he fought Draku's minions as they invaded Ta-Koro. He is a skilled swordsman and also courageous and honorable. However, sometimes he is known to have fierce temper, fortunately his temper is often for the right reasons, like when things would threaten the peace of fellow matoran. He was appointed as leader to the team, much to his initial discomfort. His weapons are the spark Katanas.
His fighting style is seen as direct, fierce and balanced (not too fast but not too slow).
LDD rendering of Baku's Spark Katanas
Creator's note: The way that Baku is wielding the Katanas is my mistake. The Katana in his left arm is wielded backwards.