Ice Ninja
Ice Ninjas are Ninjas that can freeze people. They are very cool with their weapons.
Earth Ninja
Earth Ninjas are usually found outside and they like to be close to the earth. They use the earth to fight.
Water Ninja
Water Ninjas are seen mostly in water and they like to be in water.
Fire Ninja
I think Fire Ninjas are cool because they flame up and disappear in mid air.