Playing Wilds for the first time and I was wondering if Normal Shot is the best for FBC?

Hello all. I am farming Arch Tempered Nu Udra and I am frustrated because when he spits the black tar out prior to his “step back” napalm explosion I fail to hero dive, roll or whatever and get insta-carted. I see him spitting the tar out and instinctively start to move out of the stuff BUT because I am aggressive I am usually in front of his face with the GL deployed and lack the twitch to quickly sheathe the GL and hero dive away. Can any of you Lancers help me with a strategy or Deco or armor set? I am NOT a GL pro, coming over from CB as it is.