Poseidon appeared to have strained patience for his brother Zeus and his many affairs, as he held Zeus, who was also his king, to high standards and expected him to abide by the laws and rules Zeus had established; otherwise, they were a pointless joke. bad temper, his violent nature, and his mood swings. Advanced Hydrokinesis: Poseidon can manipulate water with much proficiency through his will. This power extends from tidal waves, water tornadoes and pillars He is the god and king of the seas