Bontu's Monument + Cloudstone Curio + Priest of Gix + Kalastria Healer

Bontu's Monument

Cloudstone Curio

Priest of Gix

Kalastria Healer

How it works

1. Cast Priest of Gix by paying .
2. Priest of Gix enters the battlefield, triggering itself and Cloudstone Curio.
3. Resolve Cloudstone Curio's ability, returning Kalastria Healer from the battlefield to your hand.
4. Resolve the Priest of Gix ability, adding .
5. Cast Kalastria Healer by paying .
6. Kalastria Healer enters the battlefield, triggering itself and Cloudstone Curio.
7. Resolve Kalastria Healer's ability, causing each opponent to lose 1 life and you to gain 1 life.
8. Resolve Cloudstone Curio's ability, returning Priest of Gix from the battlefield to your hand.
9. Repeat.