The Greek Titan named Typhon shows up looking for Hercules.
There’s a fight, and Iceman guest stars.
He manages to get Iron Man to fight Hercules…It’s really a dumb story that makes no sense, unless you assume both characters are muscle-headed idiots who are willing to fight their friends at the drop of a hat.
Black Widow gets involved.
Eventually they all figure it out.
If you really wanted to see a couple Avengers fight a few Champions, this was for you.
Right about now, writers and artists keep shifting, book by book. Quality varies tremendously from issue to issue.