He and three other new villains took turns in trying to defeat Avenger Duck/Donald Duck. Each got one story, in what their character traits were shown.
Then the readers got to vote for the one they liked best. The winner would appear in another story.
Mr. Invisible won the voting, and returned for a final showdown with Avenger duck.
In the story, he paralyzed Avenger in to a statue of himself.
Duck defeated Mr., eventually. He was incarcerated, and hasn`t appeared since. Unlike Zafire, who got to the second place.