The Daring New Adventures of Supergirl #12

In "Guess Who's About to Die!", a tiny but deadly threat emerges when Supergirl Replicants attempt to eliminate the real Supergirl—only to accidentally cure her of her radiation poisoning. With her strength restored, the full-powered hero faces off against her mechanical doppelgängers in a high-stakes showdown. Written by Paul Kupperberg and brought to life by Carmine Infantino’s dynamic art, with Bob Oksner’s inks and Tom Ziuko’s colors, this 1983 classic features a cover by Gil Kane that captures the tension perfectly.