Dreg titans are few and far between, seeing as how to create one you need some of the purest, most putrid filth in existance to serve as it's "heart", but beyond that they are very similar in construction to dreg golems, greater dreg golems, and dreg colossuses. Seeing as they are made of rot, rust, or anything else particularly repulsive. Due to the materials that make up the body of a dreg titan, a terrible stench that few living being can withstand accompanies them wherever they go. Particularly ancient demiliches or other various, intelligent, horrible creatures may keep one in their posession, protecting something of value to them