OSecond, Chris Claremont should NEVER be allowed to write dialog for the Avengers! "Oh crumbs."??? The Black Knight acts and talks totally out of character here. He seems like one of Claremonts X-Men. Yeesh.
Well, I can give a bit of info here, as I have that issue of "New Mutants".
What is happening is a training session for the New Mutants in the X-Men's danger room.
When the New Mutants saw the Avengers appear, they claimed they were outclassed. The controls of the Danger Room were reset, and the Avengers were turned into "Teen Avengers".
That's why they are acting and talking out of character.
Found out about this on a comic book forum, just thought i'd check it out and share it with all you guys, because i love you so.