Legacy of the Barrowgrimm
Former leader of the Watchers of Hearthstone
- Former leader of the Watchers of Hearthstone, and the last mentor of Vico Ticovari
- Kostich was an expert in Veralim death rites and the lore of the Arcists
- He is rumored to have brokered deals with Devourers and other monstrous creatures, trading human lives in exchange for lost secrets and hidden knowledge.