Board Thread:Questions and Answers/@comment-73.187.46.51-20141210001553

My boyfriend told me about an old Batman comic he had when he was a kid, probably sometime mid-1970s, and I'd like to try to locate it for him -- but I can't figure out which issue. He described it to me as Batman fighting a villain (who I think was sent by a higher-order villain, if that makes sense, so maybe he was fighting someone's disposable lackey?) who didn't feel pain. He remembered Batman feeling discouraged, but fighting on and eventually defeating the villain/monster/bad guy. I've been searching and can't identify the issue he's thinking of. Anyone have any thoughts on which issue it might be? Or a suggestion of where to search? 