Some notes: Try to take him to the edge of the stage to avoid the jumping arrow attacks. Otherwise, you will have to either read the attack and dodge quickly or parry them which is easier but does considerable damage to your posture. For perilous attacks, he will always do the thrust attack after jumping during his first phase. After that, it becomes a toss--up between sweep attack and thrust attack. Either way, it's very reactable and it's free posture damage. I found Ako's Sugar to be pretty valuable for posture damage. Otherwise, the boss fight becomes tediously long because of Demon Bell and Sekiro's low posture damage and low posture health. The 9-hit combo he does is pretty good posture damage if you parry all of it. I found it easier to just dodge the lightning attacks. "Hesitation is defeat." - Isshin Ashina Good Luck.