if u stick with acid build stick with 50/50 % prof brut, if u change to vamp then you can use determ, idk why u say that camp uses more mana, acis is way worse at sucking mana now
easiest way to use it is to keep it on 1 for example and open-close at 20-30 stacks then open again, seems easier for healerimo, sometimes u can just let it run till u hit 35% HP depends on what you are doing, and for max dmg u kinda need to heal urself at every 15 sec to trigger 18% more shadow damange

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