Dung Eater will invade you mid-way through his questline or at the end of Blackguard Big Boggart 's questline. As you get a Seedbed Curse, head to the Roundtable Hold and show it to Dung Eater.

Dung Eater Puppet Ashes is a Spirit Ash Summon in Elden Ring. One of Seluvis's puppets. Use to summon the spirit of the Dung Eater. Spirit of a man who murdered thousands and defiled their corpses ...