Non Marvel

While we allow MCs from other comic book publishers, we are primarily a Marvel game. Just what does that mean for non-Marvel comics MCs?

It means that a character has to be apped as if they have always been part of the Marvel universe. It means there can't be any references to specifically non-Marvel villain groups, cities, planets, races (aside from the race the character is from if an alien), metals, etc. If it's significant to the character, they should be replaced with a Marvel equivalent. If no equivalent exists, being vague is always an acceptable compromise.