Heartblood Vampire

Whenever a creature you control dies, put a
blood counter on Heartblood Vampire. Then,
you may pay {b}{b} and sacrifice Heartblood
Vampire. If you do, target opponent loses X life,
and you gain X life, where X is the number of
blood counters on Heartblood Vampire.
When she entered the chapel, she felt a refreshing
wind blow through her. Then she felt strange. Then
she died, and realized that death was the only
way to live.