shiftygiant
Gone Fishin'
But one of the Best Magneto as a Villain stories was X-Men issue 150.
Magneto is about to win and is going to kill Kitty Pride.
He stopped when he see the Star of David that she has around her neck.
A very powerful issue.
And if the X-Men fail, or are not in the same universe, then this story is butterflied away.
Literally all development in the MU that involved the X-Men is gone. Even if they get folded into the Universe, they'll be second raters at best.