Let's break down all the rewards you can get from the dung eater quest chain. The timing of your encounters with him is crucial, since some rewards become unavailable if you progress too far. When you first meet him at the roundtable hold, make sure to exhaust his dialogue before heading to the moat outside the capital walls where he'll invade you. Time your dodges carefully during this fight, since his attacks have a specific rhythm - he always raises his sword slightly before his jumping slash which is your best opening to counter. After defeating him here, you'll get the sword of milos, which has that unique shriek ability that drops enemy defenses.

Once you progress through his questline in the sewers, positioning is important during the cell encounter. Stay near the bars and talk to him first, then use the key to access the deeper areas. The real fight happens in the outer moat where you'll need to watch for his grab attacks - he telegraphs these with a distinct crouch animation. Getting all five seedbed curses is tricky but essential if you want the full omen armor set. For an alternative path, bringing seluvis's potion to him when he's chained up will get you his puppet spirit instead, which is incredibly tanky and great for boss fights. Speaking of bosses, completing his quest also lets you summon him for the mohg fight in the subterranean shunning-grounds, and he can be quite helpful there if you position him right to draw aggro.