Bethen, Protector of Life

Lifelink Defender
Whenever another human or zombie enters the battlefield put a +1/+1 counter on Bethen, Protector of Life.
As long as Bethen, Protector of Life has 3 or more +1/+1 counters on it, it can attack as though it didn't have defender
As long as Bethen, Protector of Life has 6 or more +1/+1 counters on it put an indestructible counter on it.