Around 1 hour to beat this boss. Pain in the ass due to one attack where he creates rings on the ground, by slamming the ground, and does this for a very long time until I would get killed. I tried using the pillar move with the staff to stay up in the air. Didnt work too well. I tried using one of my forms to tank the damage from the rings, but I wouldnt have another form available when he did it again. Tried jumping the rings and rolling through them. Checked a video and it turns out I can just get up on the platforms when he does that move. Knowing that wouldve probably saved me 30 minutes easily.
I killed a stone golem type of boss , but lost 45 minutes of footage when the game crashed for the second time. The secret stone boss went down on the first try I believe. It was a secret boss unlocked by collecting the 6 buddha eyes.