I have no skill but I must parry

Straight up first time I've ever used parries in a From game. Clean start, not so clean finish.
After spending a good amount of time learning this boss my opinion on him has changed a bit, but I still think it's a little unfair. Aggression should be a little lower on p2, and damage should be a little lower (in turn, nerf scadutree blessings' efficacy). Attacks wise, the quick double slash needs a bit more of a delay, the afterimage 5x side slash shouldn't be completely free at point blank and nigh undodgeable anywhere else, and to this day I don't know if the jumping overhead afterimage attacks are dodgeable at all on a midroll since they're barely doable on a lightroll.
But again, skill issue I suppose.