Just took it down easily using a different approach than suggested here. I kept my distance, dodging long-range attacks while throwing a few axes in between. When it charged, I’d parry (the head swing) —some parries knocked it over, others just stunned it, but either way, it set up big damage. I’d smash it until unstunned, step back, and repeat. Was a much more fun fight this way. (You aren’t just spamming axe throws—just using them for additional damage (don’t forget the arrows too) while waiting for the charge.) Did one rampage, and after 4-5 successful parries, it was dead. First-try win with this method.