Nathrath Avenger

First strike, Haste, Vigilance
Everytime a creature you control dies, put a
+1/+1 counter on Nathrath Avenger.
Everytime Nathrath Avenger deals combat
damage to a player, remove a +1/+1 counter
from it.
Her jagged blade has seen enough blood to satiate a
Vampire's thirst for a whole year.