Obviously when there is a threat huge and one guy can't do it alone, then he is going to need help and thus form a team. We all know the great groups, justice league, the x-men, thunderbolts, teen titans, the avengers, secret avengers, mighty avengers, west coast avengers.......new avengers (damn how many avenger teams were there? LOL) but anyway you get my point. what do you think is specifically needed to make a team up legendary? who would you put in your group? would you combine all the avengers teams? who would be leader? your thoughts?