Gilgamesh is not a real hero.

Gilgamesh who is the hero of the epic tale with the same name had no reason to kill the villain the story Humbaba.He only killed Humbaba for his own selfish gain.This is not usually a trait or characteristic of an epic hero,most epic heroes are selfless and only want to help other. As is the story for the another story we read called "Beowulf". Beowulf went to go help out King Hrothgar,who was having a problem with a monster called Grendel killing his people.