My mistake, I meant Druid ofcourse, always confusing him with elementalist 
In past Iāve killed him with legit unfinished vindicator, under 100 level and no good components, just stacked lightning resistances + ultos amulet, probably every concept can beat him with just stacked resistances.
Ravager with Fumble is āof soulsā, I always choose of Minds (hardest meele hitter?), gotta check other archetypes in future because my experience with them is poor, only killed them once with my legit characters to get all helmets for collection.