Humbaba is monstrous in numerous ways according to the text of Gilgamesh. His demise is seen as vanquishing evil from the world. The renown of Humbaba is so profound that despite no man facing him, the people know much of him and more specifically know to avoid him at all costs. He merely needs to strike terror in the hearts of man to protect the forest, never having to take physical action against intruders until the arrival of Gilgamesh and Enkidu. The terror Humbaba instills is great enough that two of the most powerful, alpha male protagonists of the story, and presumably of the world, wish to abandon the quest to slay him. Even as victory is assured and Gilgamesh is in the act of executing Humbaba, he is fearful of the outcomes and shaken at the thought of being cursed by the beast.
The pathetic aspect of Humbabas character is perhaps that he retains a human quality; the desperation to preserve his own life. Initially he is portrayed as a raging bull that lashes out at any dangers regardless of the cost to him, as his only goal is protecting the forest. During the encounter between the heroes and Humbaba, he states his brutality clearly, vividly depicting not only how he would kill them but ways in which he would mutilate the corpses and display them. However when Shamash pins him and his demise becomes a reality, he begins to bargain for his life, shirking his duty to protect the forest at all costs and opting to walk away unharmed. As Enkidu goads Gilgamesh on and the execution draws closer, Humbaba panics and decides to threaten them with a curse if they do not take his offer, again displaying a base human instinct to fight for life at all costs. The irony is that the things that made monstrous Humbaba pathetic were human traits in the end, namely a desire to preserve himself at the cost of everything else and an emotional reaction of threatening to curse the heroes when his end was near.
I was surprised at the death of Humbaba as, for all the fuss and build-up that went before that confrontation, there was simply no battle. Gilgamesh and Enkidu were not injured, they did not fight to their last and nearly perish themselves. A greater entity merely presented a deus ex machina in which the hero simply had to execute the beast with no danger to himself. For all the fame that the heroes aspired to gain, I didn’t feel their actions were worthy of the rewards as Humbaba had no chance and was reduced to begging for his life. Humbabas death seems to be a minor footnote in the story of Gilgamesh, which took me by surprise considering all that went into painting him as an insurmountable beast in the books prior.