Amazing Spider-Man (1963 1st Series) #256 VF
Published Sep 1984 by Marvel.
"Introducing...Puma!" Part 1 of 2. First appearance of Puma. Script by Tom DeFalco. Pencils by Ron Frenz. Inks by Joe Rubinstein. Cover by Ron Frenz and Joe Rubinstein. The Rose is tired of the web-slinger interfering in his criminal activities! So the underworld boss brings in an assassin from the American Southwest! Puma! Spidey doesn't much about Puma (aka Thomas Fireheart), but he will...very soon! In the meantime the black symbiote costume keeps Peter Parker up past his bedtime...and then some! Cameo appearances by the Black Cat, Mary Jane Watson, Betty Brant Leeds, and Joe Robertson. (Note: This two-part story was reprinted in Marvel Tales 270 & 271.) Cover price $0.60.