Under the part about fire, it still calls it "iron golem" once.
You might want to redo the Fire part though. Although it can heal itself, it shouldn't be able to use the HP granted by the Fire to "Prolong the Agony". Instead, any fire damage above its full, normal HP, is directed towards all creatures inside(divided amongst them). I would say maybe give it the ability to extract Agony/Liquid Pain(Yes, the drug) as well.