Released 03/04/1967 - 07/29/1967
From Valiant and Knockout #231 - #252 - 2 pages each (except first issue) for 45 pages - The Warlock has the ability to turn his minions from humans to claymen, making them very strong and very hard to kill. Louis Crandell, the Steel Claw, is sent to stop him. This adventure has him getting his new crime-fighter suit. It also introduces him to paperboy 'Blackie' Morris.
Here are the pages I have of it.