Power Man Vol.1 #19
Luke Cage arrives at the office of Hero for Hire to find a package waiting for him. When he opens it, deadly serpents spring out. Luckily for our hero, their fangs can't penetrate his diamond-hard skin. This little gift was a calling card of the new player in town. A man who is every bit as strong as Power Man and probably deadlier, the gangster known as Cottonmouth.
Printed: Jun 1974
Writers: Len Wein
Art: George Tuska and Vince Colletta
Cover: Ron Wilson