Well that was a solid run. Attack lots to stack Master Bleed which when I'm hit counters for huge damage, Blood-drinker then instantly heals me to full again. By the end I was pumping Vigor for more HP since (nearly) the only way I could die was to get one-shot.
Final boss was a joke as I stepped up to him and Blood-drinker hit for 1M + another 1M damage from the Bone Skirt with each attack.