I'm level 58 and have recently switched to master difficulty. I decided that it might as well be that way considering the bugged briarheart forsworn enemies. Two perk points are available. To get to Purity I must spend an extra point to get through Snakeblood, which I've not really seemed to need ever. Is Purity worth it to spend perk points on. Or, if you had a skill with zero perks that you would rather put those points into, what would it be?