Champions #11 (February, 1977) was a big issue for the team in more ways than one.
First and foremost, it had the team meeting Black Goliath (a West Coast super-hero with growth powers and ties to Hank Pym/Ant-Man and the Avengers). It also guest-starred ex-Avenger archer, Hawkeye, and his time-misplaced cowboy buddy, the Two-Gun Kid, and the team faced off against the shadowy threat of Warlord Kaa (as well as getting use to having Darkstar around).
The team also was to deal with the Stilt-Man, and a threat from Black Goliath's recently cancelled title, and artist John Byrne came aboard as Champions artist at this time (through issue #15), joining Bill Mantlo's wild scripts (which were a part of the rest of the Champions' run!).
Vacation From TroubleGodzilla (at least Hercules, Black Widow, Angel and Iceman did) in Godzilla #3 (October, 1977 by Doug Moench and Herb Trimpe); the whole original team gathering to help Iron Man fight MODOK and A.I.M. in Iron Man Annual #4 (August, 1977, by Bill Mantlo and George Tuska); Hercules working with Black Widow and Iceman and Avengers Iron Man and the Beast to fight Typhon (an old foe of Hercules) in Avengers #163 (September, 1977, by Jim Shooter and George Tuska), and the team being the destination of Magneto and the Beast in a world taken over by Dr. Doom in Super-Villain Team-Up #14 (October, 1977 by Bill Mantlo and Bob Hall), which led directly into...
Back to Business
The rest of the team was controlled and did fight against Magneto, the Beast and even the Hulk, but eventually Dr. Doom was beaten (but not without more fracturing of the team dynamic....which already was falling apart).
The team showed how fractured it was here...
....and things didn't get better.
The Last Issue
This was the end of the Champions run, but not quite the final end of the team....that was promised for an upcoming Avengers issue, but instead ended up in Peter Parker, the Spectacular Spider-Man....
...and for more on that, check back!