Hey Danu! This fight is designed to scale upwards for players who are higher PL so it's intended to be difficult. Be sure to check your loadout, build to mitigate some of the Husks, and focus down those crystals in a timely manner. This is a great way to start preparing for the Mythic version who is miles ahead in terms of difficulty. The mythic weapons he drops are pretty incredible so it's definitely worth familiarizing yourself with the fight.