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Shamrock first appeared in Marvel Super-Heroes: Contest of Champions #1 (June 1982). She also appeared in issues #2-3 of the series (July–August 1982).
The character subsequently appeared in The Incredible Hulk Vol. 2 #279 (January 1983), Rom #65 (April 1985), Marvel Comics Presents #24 (July 1989), Alpha Flight #108 (May 1992), Guardians of the Galaxy Annual #3 (1993), Guardians of the Galaxy Annual #4 (1994), Excalibur #108 (April 1997), and Marvel Monsters: From the Files of Ulysses Bloodstone and the Monster Hunters (November 2005).
Shamrock received an entry in the original Official Handbook of the Marvel Universe #9, and in the All-New Official Handbook of the Marvel Universe A-Z #9 (2006).
Following a thirteen-year absence from comics, Shamrock returned to the Marvel Universe in a short story published in Girl Comics #2 (2010), where she is depicted as having become overweight during her retirement. The story is written by Kathryn Immonen and illustrated by Colleen Coover.[1] In 2013 she appeared in Fearless Defenders #9.