"It is the first boss in the Iron Keep. He is optional so if you have trouble dealing with him, it is better to come back to him after some time. If defeated, returning to his room will result in a Pursuer fight."
Smelter Demon (Melee) Shield: http://youtu.be/hhnX0eH_VW8
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The Smelter Demon is an optional boss in Dark Souls II. The Smelter Demon is found on the right...