Health Attribute - Radix has a shield (blue) bar, followed by an armor (yellow) bar. You should have a Shock weapon and a Corrosive weapon to deal as much damage as possible. Pangolin Spawn - For some reason, Radik loves to summon Pangolins. You can eliminate one of them if your HP gets depleted and you need the self-revive/last stand.
Fighting a Hive Lord is challenging enough, but defending yourself from one is also a Herculean labor. The massive worms can burrow underground for surprise attacks, erupting to shower the battlefield with rocks or flatten you with their sheer mass. If that wasn't bad enough, they can blanket the area in corrosive bile, forcing teams to stay on the move during these fights.