Kai

Kai is a unit in Lego Battles: Ninjago as well as a deuteragonist of the Lego Ninjago: TV Series. He is the leader of the Ninja Team, being mentored by Sensei Wu. Kai is a user of the element of fire, and is a melee unit.

Upgrade I

 * Spinjitzu Fire Ring
 * Flash Bang

Upgrade II

 * Spinjitzu Brush Fire
 * Speed Buff