Zabu vs. JJJ. Kraven vs. Ka-Zar. Peter and Gwen in the Savage Land.
And, once again, he changes into Spider-Man in a remote place and nobody notices the connection.
And Ka-Zar is able to fairly easily take on Kraven–a man who would, about ten years later, prove himself able to kill Spider-Man.
Creators: Roy Thomas and Gil Kane