Not to mention the x4 increase to light damage that vamp form takes. It makes it COMPLETELY unviable late game, even with a New Shroud upgraded with 30 light resist, as most mobs are going to one shot you or nail you hard enough that a stiff breeze will kill you. Having played with it some late game it just isn't one bit worth it. Standing next to Horoth in wraith form is risky business. He'll sunburst and just about kill me with almost 600 HP. In vamp form? Dead.