People say this boss is the hardest thing ever, but I disagree. He took me more tries than a lot of the other bosses but I'm pretty confident I could beat him within three tries if I were to fight him on another save file, maybe even just one. It all depends on how you decide to try to fight him. If you go for the hyper agressive route you're at risk of getting smacked to death on the third phase because he starts to mix up his combos. I go hyper aggresive until phase 3 and then I just wait for him to do his double arm sweep into downwards smash. Every time he does that move you can get an almost guaranteed five to eight hits on him with no chance of him countering you due to his incredibly long animation on the final move of that particular attack. He has a few other moves that can be punished almost every time at essentially no risk to the player, like both of his jump attacks and his head smash. Demon of Hatred has 3 really dangerous moves with this method. His drag attack, his fire dance, and the move where he throws a DS3 bursting fireball. Because you want him to use his whip combo as much as possible, you want to be mid range which is basically just outside of his bursting fireball range. That move hurts though and it can be easy to ***** up and get hit by it if you're not careful. The drag attack is dangerous for obvious reasons but as long as you jump in the right direction it'll never hit you. The fire dance attack is probably the hardest to completely avoid but you can just run forward at a slight angle to dodge at least most of them, and he's open to a lot of free damage if you can get out of it unscathed. Over all it seems like a boss where you just need to be patient and memorize his startup animations. Most of his dangerous attacks can be seen coming and he has many MANY openings after he commits to one. Hope this maybe helps someone, not every boss is a parry/r1 fest.