Can y'all tell me how powerful the dux is?

I was casually playing with my meta acc with a full on mk3 UE bots (I left 1 slot for a ravana) And Hell did I just witness my UE fender get sawed in half by a Dux, like my ue fenrir got a tank build with them ue storms and ue glory, my hp was at 578k and I encountered one Dux and ended my fenrirs life. And once I dropped my ravana with ue storms, how the hell did I kill that Dux easily? So to point it out, does the Dux have like insane damage but low durability?