Just something I thought would be fun to post… not everytime you see a Nemesis fighting a Hero, at least I haven’t seen it yet. 
Grava’Thul can spawn on Mourndale too, and he and a large contingent of Ch’thonians were busy fighting the Aetherial Vanguard when I located him (thanks to the new handy-dandy Nemesis locator radar! :))
I sadly did not see who the Hero was before my pets attacked Grava and he decided to abandon the fight in favour of me - they tore it apart too fast afterwards when I returned, though the fight between them was still going. From the shape I’d say one of the Regurgitator bosses.
