Marvel Two-In-One #61 [Newsstand]-Good (1.8 – 3) 1st Appearance of Her.

"The Coming of Her!" Part 1 of 3. Guest-starring Starhawk and Moondragon. First came the mysterious and powerful being known as Him (Adam Warlock). Now, the being simply known as Her has arrived and she is seeking her counterpart. But he's dead, right? Includes a 1-page ad for the Parker Brothers Rom the Spaceknight electronic action figure that inspired the excellent comic series created by Bill Mantlo and Sal Buscema.
(NOTE: 1st appearance of Her, formerly Paragon, later becomes J'Ridia Starduster, Kismet and Ayesha).