Cleric Class + Walking Ballista

Cleric Class

Walking Ballista

How it works

1. Give Walking Ballista lifelink.
2. Activate Walking Ballista by removing a +1/+1 counter from it, dealing 1 damage to any target and causing you to gain 2 life.
3. Cleric Class triggers, putting a +1/+1 counter on Walking Ballista.
4. Repeat.