This was a tough one for me. Camera was causing me all kinds of problems and I was getting killed in 2 hits. Then I gave in and summoned the greatshield soldiers and they aggro'd him where no other summons would.
So Elden Ring's answer to the grim reaper is a big sexy werewolf clad in plate armour with a giant sword made of death, who does a whole bunch of ridiculous anime moves and backflips? Yep I'm a certified Maliketh simp.
In the heat of the moment I was too focused on getting my *** shredded, but looking back on it, his dialogue and lore made me feel so sad for killing him, the way he sounds so betrayed in his intro after you give him all of the deathroot really hurts, this fight really made me feel like a complete ******* for turning on him like that.
You didn't "turn" on jack s***. The whole purpose of you even being there is to become Elden Lord and to restore the Golden Order. This was just a doggo who you fed death to and stood in your way in the end.