I turned my back on the Two Fingers and we each have been cursing the other since. The Baleful Shadows. are their assassins. - Miniature Ranni

The Baleful Shadow can be backstabbed. Can be poise-broken, riposted and parried. Deals Standard and Holy Damage. Can heal at least 5 times. It is susceptible to Frostbite. The Ash of War Hoarfrost Stomp can make this fight significantly easier, as it will often catch the Baleful Shadow despite its attempts to dodge projectile attacks of any sort. It will take three or four full hits with Hoarfrost to apply the Frostbite status, dealing a chunk of health damage but more importantly slowing it down significantly, allowing you to dodge his strikes and easily circle around for backstabs, as its turn rate will be significantly reduced. You can easily get a backstab opportunity if you roll forward, aiming slightly to his right side, during his jump attack, frontal charge attack and grab attack. When you're close he can use a spinning attack instead of jump attack, both of which begin in the same stance. In this case you can roll forward to his left side for a backstab opportunity. Takes two parries to break stance, the first parry is followed by unparryable horizontal slash with very long wind-up and high poise damage. The Baleful Shadow first spawns in next to 2 coffins. By keeping the middle one between you and him, he will be mostly unable to cross it, and you can hit him safely with a ranged weapon. You can sneak up to this coffin and cast Poison Mist to inflict poison damage. You will need to inflict poison damage six times to kill him, and each subsequent time you inflict takes more casts of Poison Mist, so bring some Flask of Cerulean Tears. Resembles Blaidd the Half-Wolf, sharing even the same moveset. However, the Baleful Shadow's sword is imbued with Destined Death, not the Frost enchantment that Blaidd's sword is enchanted with. If you run past the Baleful Shadow and down the elevator to activate the Lake of Rot ShoresideGrace Site of Grace, this will provide a faster and safer boss run.