After countless runs of that strike I decided to full auto sidearm Xol in the normal strike list. I moved up close, dropped a rally barricade and started shooting. He bite me! Insta kill! So my teammates both come up to revive me and he bites them too. Our whole team wiped haha. I had never gotten close to him before and just did it without thinking. I guess I should have assumed every boss has a stomp attack. We melted him quick after, from a distance lol. Tldr: Don't go close to Xol. Death awaits you. With Big Sharp Pointy Teeth!