I would Buff Vampiric presence to to 60-70 so that it may be of any actual use. I would almost full rework the Blood Line as it has so many terrible traits. I woul give reaper a unique buff, an aura that causes allies to deal increased damage against chilled foes. I would completely rework gravedigger, its a dull skill. I would change sand savant to being you no longer cast sand shades and instead only pulse around yourself but then scale up the damage and targets to accomodate.That would be my very first pass