From Uncanny X-Men #128 (1979): written by Chris Claremont, art by John Byrne, ink by Terry Austin, color by Glynis Wein, lettering by Tom Orzechowski, edited by Roger Stern
Next to Doctor Strange. I like her story so far even if it's a bit wacky with her falling in love with a millionaire hippie. It's also rad that she's an Avenger.