Demon Sword Heartspan

Whenever a creature dies, put a +1/+1 counter
on equipped creature.
If equipped creature is a Vampire, put two +1/+1 counters on it instead.
Equip {1}
"The sharpness of Heartspan's bladed edge is authentic
So much so that if you leave the threads of your cloths
alone they shall twine themselves back together. Of
course, that is only if I am the one wielding the blade."
—Kiss-Shot Acerola-Orion Heart-Under-Blade