Golgari Captive

Defender, At the beginning of your upkeep, sacrifice a creature or lose 2 life.
Purge -Whenever you sacrifice a creature, put a Rage counter on Golgari Captive, then if Golgari Captive has 10 or more rage counters in it, it loses defender
Golgari Captive's power/toughness are equal to the number of rage counters on it plus one.