However,  since he was immortal, they couldn't kill him either, and so he  broke the impasse by giving Prometheus his immortality, allowing  him to die.
He accidentally cut his leg on one of Hercules' magic arrows,  which were so powerful that the wound could never heal. However,  since he was immortal, they couldn't kill him either, and so he  broke the impasse by giving Prometheus his immortality, allowing  him to die. So ended the life of this son of Cronos, who taught  Apollo about music, and who worked as tutor for Jason and Achilles.  FTP, name this creature, the only good centaur in Greek myth.
He accidentally cut his leg on one of Hercules' magic arrows,  which were so powerful that the wound could never heal.
{Chiron}