This is going to be another boss fight where you face more than one of the boss at the same time. When you start this fight there are multiple abyss watchers to watch out for, so keep an eye on your back.
Step 1)Take advantage of them fighting amongst themselves
If you keep your distance from the boss enough, there's a good chance the clones are going to start fighting each other and you can take advantage of this. Get in behind one of them while they're fighting, and get a few good swings in before you fall back again. Rinse and repeat and keep moving to avoid having them all converge on you. The more space between you and them, the more likely they'll brawl with each other.
Step 2)Don't celebrate.
So you got him down to zero health and the cinematic of him dying is playing. Don't celebrate, stay ready. He's getting back up and he's so angry now he's on fire. Literally, his sword is on fire now. At least now there's only one of them to worry about.
Step 3)Dodge his long gap closing attack.
Keep your distance from him and he'll use a charging thrust attack to close the distance quickly. This can be easily dodged to the side and you should be able to get a good couple of swings in against him just after your dodge before he can recover to swing at you again. When he does swing at you again it's time to dodge and dance backwards to avoid it, and hopefully you can put enough distance between you to prompt him to use it again.
Keep avoiding him and striking after his lunge and you should be able to bring him down eventually, he can be staggered for some extra strikes as well, and doesn't have a lot of health. If he does catch you there's a good chance you are going down though, that flaming sword hurts a lot.
Step 1)Take advantage of them fighting amongst themselves
If you keep your distance from the boss enough, there's a good chance the clones are going to start fighting each other and you can take advantage of this. Get in behind one of them while they're fighting, and get a few good swings in before you fall back again. Rinse and repeat and keep moving to avoid having them all converge on you. The more space between you and them, the more likely they'll brawl with each other.
Step 2)Don't celebrate.
So you got him down to zero health and the cinematic of him dying is playing. Don't celebrate, stay ready. He's getting back up and he's so angry now he's on fire. Literally, his sword is on fire now. At least now there's only one of them to worry about.
Step 3)Dodge his long gap closing attack.
Keep your distance from him and he'll use a charging thrust attack to close the distance quickly. This can be easily dodged to the side and you should be able to get a good couple of swings in against him just after your dodge before he can recover to swing at you again. When he does swing at you again it's time to dodge and dance backwards to avoid it, and hopefully you can put enough distance between you to prompt him to use it again.
Keep avoiding him and striking after his lunge and you should be able to bring him down eventually, he can be staggered for some extra strikes as well, and doesn't have a lot of health. If he does catch you there's a good chance you are going down though, that flaming sword hurts a lot.