The Power of Ka-zar by Rob Steibel Posted April 30, 2010 in Uncategorized. One of the last things Jack did for Marvel before he left to work at DC Comics. Kirby’s version of Tarzan — Ka-zar from Astonishing Tales #1 (1970).A rare example of Sam Grainger inks on Kirby. Looks like Fabio during the 80s. Share this: