He used to be an ordinary ninja, he fought with other ninjas on a rock, and there was water below, where it was very deep.The enemy pushed the ninja, he drowned, and went to heaven.God told him that he would give him another life, and the superpower of water.He agreed, and God gave him another life and ability.Now he's a water ninja

Weapons:
1) Water balls

2) Water from the hands

3) Water Katana

4) Water Shurikens