What do you use that works?
On a number of occasions, I've missed a kill against a vampire because my class finisher (Impale) seems to do no damage at all to them when they have only a sliver of health. I've had instance when a vampire is running from me, they have no wards or shields up, and I hit them 3-4 times in a row with impale before watching them run away (usually because I've been killed by their buddies finally showing up behind me).
I'm pretty sure Undeath is simply neutering my finisher. I've considered using Silver Bolt but the chance of it procing is so low that it doesn't seem like it would be any better. So is there anything else that can be used that's more effective here or do you really just need to brawl it out and hope that they don't think to use a heal potion?
Fedrals: PC / NA / EP / NB