 Relics , which the player can use in successive games ( such as Poseidon 's Trident obtained in God of War allowing Kratos to swim underwater for extended periods ) are also found and necessary for game progression . Kratos often has a special ability , which provides temporary invulnerability and increased attack damage . This ability has become an ongoing feature of gameplay throughout the series — Rage of the Gods in God of War and Ascension , Rage of the Titans in God of War II , Rage of Sparta in God of War III , and Thera 's Bane in Ghost of Sparta . This ability can be recharged by building hits on foes in combat , and gaining game @-@ specific orbs . Thera 's Bane , however , is recharged automatically . 
