2nd labor of Hercules: Kill the Lernean Hydra
The evil, snakelike Hydra had nine heads. If one got hurt, two would grow in its place. But Hercules quickly sliced off the heads, while his charioteer, Iolaus, sealed the wounds with a torch. Hercules made his arrows poisonous by dipping them in the Hydra's blood.
How does the Myrmidon king fair here?