Religion: The Cult of Dissolution:

Lukarr's followers are typically assassins and poisoners, though members of The Cult of Dissolution are another breed of vile fiend.  The members of this cult elevate mutation of themselves for revenge or 'justice' as some claim it to be beyond just simple repayment for his assistance, drawing others into the cult to poison and dissolve into a ritualistic mixture created for the sake of stabilizing some of the mutations so as to retain their sentience and speech, if nothing else.  This altered members will typically disguise their new forms as they seek out others to sacrifice or in carrying out his aims...  Their icon is a flagon of slime with a bone dissolving in it.