Use the Symbol of Avarice to get into red tearstone range. The duration of this build is insane if you can avoid damage and the DPS and DPH is ridiculous getting cursed is to increase the duration as well the lower the health the lower Power Within ticks and the easier it is for Sanctus to keep you from dying anytime soon (I don't know how long exactly you'll last but from my experience it lasts many times longer than 99% (literally) of fights).