Who was the messenger of the gods also know as the giant killer?

The messenger of the gods in Greek mythology is Hermes, who is known for his speed and cunning. He served as a guide for souls to the underworld and was also associated with trade, thieves, and travel. The title "giant killer" is often attributed to him for his role in various myths where he outsmarted or defeated giants, showcasing his cleverness and resourcefulness. Hermes is a multifaceted deity, embodying both messenger and trickster attributes.