Being Reincarnated into an Iron Sword

When he woke up, he found that he had been reincarnated into an iron sword that was about to be scrapped. At the moment of life and death, the system gave a glimmer of hope and issued a series of difficult tasks. However, there are no reliable tasks, only absolutely unreliable tasks. The scheming system says: In principle, it's fine as long as the master is not killed. Reincarnated into an iron sword, he is destined to embark on a road full of thorns. Should he sacrifice his life to become a benevolent person or transform into a god? In the face of ups and downs, can reincarnation into an iron sword create an immortal legend?