The phrase "dragon slayer" refers to a person who fights and defeats dragons. It can also be used metaphorically to describe someone who overcomes great challenges or conquers their fears. Full definition
After your sister is kidnapped by a mysterious cat known as Drakoth, you come face - to - face with your destiny as part of a long - lost race of dragon slayers called the Dragonblood. (mypotatogames.com)
The early - career dragon slayer often comes to resemble the dragon itself later on. (fortune.com)