Conan the Barbarian #39 (Marvel Comics, 1974)

As Conan rides through the mountains northwest of Aghrapur, he is attacked by a murderous gang of thieves. After killing all of them without breaking a sweat, Conan is bitten by a snake and poisoned.

Not one to let a snakebite slow him down, Conan continues on his journey, but eventually succumbs to the venom and heat of the desert. He passes out and will surely die, but of course, he doesn't because he is Conan.

A nomadic tribe saves him, nurses Conan back to health, and needs a good "sword arm." The village of Keshaan on the Vilayet Sea has fallen under the spell of a priest named Ghul-Azelel, who chains fair maidens to rocks in hopes of summoning a monster, Clash of the Titans-style.

Conan sneaks into the city but is captured and tied to a post. He escapes, obviously, but then swims out to the rock to save the beautiful daughter of the tribe who saved him. A terrible, oversized crocodile emerges from the water. Conan stabs it in the face. He later stabs it with the post that he was chained to.

A knife wound barely slows the creature down. Conan guides it to the shore, where it proceeds to eat most of the bad guys in town, and then drags Ghul-Azelel into the sea to drown him, which is a good laugh.