No, Pauurc is the area boss. He’s a taken ogre with the mechanics from the corrupted. U summon him by finding his lacky which is a random event spawn just like enemies moving against each other then you take the ball it dropped, charge it with the blue zone on one of the cliffs then take it to the statue thats on the side going towards where petra is. It’s off in the mist and u gotta do some creative jumping to get up to it. Then Pauurc spawns and congratulations you saved every guardian some trouble. However due to it being a random event there is a very good chance you wont see him at all during that quest step.

Well I completed the quest step by just killing the heroic boss from the public event. So what I said is correct.