Kitchen Finks + Goblin Bombardment + Hardened Academic

Kitchen Finks

Goblin Bombardment

Hardened Academic

How it works

1. Activate Goblin Bombardment by sacrificing Kitchen Finks.
2. When Kitchen Finks dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. Hardened Academic and Kitchen Finks trigger.
4. Resolve the Hardened Academic trigger, putting a +1/+1 counter on Kitchen Finks.
5. Resolve the Kitchen Finks trigger, causing you to gain 2 life
6. Resolve the Goblin Bombardment ability
7. Repeat.