Jack Power (Marvel Comics) Jack Power (Marvel Comics) Jack Power, currently known as Mass Master, formerly Counterweight and Destroyer, is a fictional character appearing in American comic books published by Marvel Comics. He first appeared in "Power Pack" No. 1 and was created by Louise Simonson and June Brigman. Jack was a founding member of the superhero team Power Pack. The second youngest of the four Power siblings, he was 8 1/2 years old when he was given his powers by Aelfyre Whitemane, a dying Kymellian noble. He continued to operate with Power Pack through their entire history. Jack Power was born in Richmond,
Captain Marvel (DC Comics) "Split!" and reassembled himself by shouting "Xam!" He had a young human ward named Billy Baxton. This short-lived Captain Marvel was credited in the comic as being "based on a character created by Carl Burgos". Legal issues with Marvel Comics over the use of "Marvel" in the title led to M.F. ceasing publication after five issues, and accepting a $4500 settlement from Marvel. When superhero comics became popular again in the mid-1960s in what is now called the "Silver Age of Comic Books", Fawcett was unable to revive Captain Marvel, having agreed to never publish the character again as part