Carter, the Hungry Arbiter

Consuming Corruption- Whenever Carter attacks a player, if they have three or more poison counters, Carter may consume them and gain x "Famine" counters, with x being the number of poison counters. If consumed in this way you must consume all of a players poison counters. This effect can only be triggered once per turn.
Hunger of a God - {t},{w/b}{w/b} or lose 4 life
I will put this ability in the comments because it doesn't fit in the card creator I'm using.