The Lost Sinner, NG+7 Covenant of Champions

In NG+ this goes from a relatively simple fight to a difficult one. Doing this No Damage would be possible but very hard due to the constant fireball spam from the pyromancers. Also I find it strange that you can parry this boss yet the parry stun time is not long enough to get an attack in so there is literally no point in doing so. Dark Souls II: Scholar of the First Sin