The second version of Gravk, Toa of Gravity and Atraks' brother.
Story: After the forming of the council of the Element Masters, Gravk became the Master of Gravity. After the Masters finally defeated Nazak, the half Makuta, half Artixion used his powers to corrupt Gravk's soul. On the next day, Gravk told the inhabitants of Altanos that the Masters are corrupted and that they are enslaving them and he offered the inhabitants to leave the city and live freely. Many followed him. After Atraks and the other Masters failed to stop him, Atraks enraged and ordered all Toa that sided with him do attack Gravk and the rebels. The Brothers' War started. In the last battle, Natana, Atraks' daughter managed to cure the defeated Gravk from the darkness. He returned to Altanos and reclaimed his position as the Master of Gravity and helped Atraks rebuild the ruined cities.