So I was wondering if I could get so advice about the vampire skill line. I'm currently a level 41 Dragonknight (not sure the class matters) and I managed to get bit by a vampire the other night. I went ahead and did the quest line to become a vampire and added in a skill point for, forgive me for not remembering the exact name, the ability to drain life from enemies.
Now, here's what I need some help with. I have no interest in being a vampire, but I want to level it up all the way so I can unlock the dye pertaining to that achievement. I'd like to put as little skill points as I can into the skill tree as I can. Does anyone have some tips as to how to level up relatively fast or is what I'm doing kind of going to be a huge waste of time? Any information I looked up about leveling up the skill was all done before they put out the recent patch. I'm not sure if it's worth it anymore. I read before it doesn't matter what level enemies you attack, but I have no idea if that's true or not.
Any help anyone can give me would be awesome. Thanks!