Board Thread:Questions and Answers/@comment-6312663-20160201132419/@comment-27766744-20160501044140

Every version of Squadron Sinister or Squadron Supreme is an EXACT copy of a version of the DC Justice League (they started as a joke, but nowadays they are really quite important Marvel Characters with their own titles)

The Retaliators in dc Multiversity are an obvious dc version of the Avengers (and their Earth a copy of Marvel universe)