my first run, he was surrounded by sunken cripts and there was a convenient fallen tree next to one that i could climb up on.

so i made a whole bunch of stagbreakers (cus i killed ekthier like 4 times) so i could AOE him and his blobs but they couldn't hit me.

took a while, but it worked.

now i just parry him with my dank shield and porcupine for EZ