From the corpse of a patchwork fleshripper in Nektulos Forest.
From the corpse of a clay remnant in Runnyeye.
From the corpse of a construct of malice in Fallen Gate.
From the corpse of a magmatic golem in Solusek's Eye.
From the corpse of a toxic goiter in The Sundered Frontier.
From the corpse of an Aureate Protector in Throne of Storms.
From the Exquisite Chest of Construct of War in Temple of Rallos Zek: Foundations of Stone.
From the corpse of golemic punisher in Spirits of the Lost.