Loran, Disciple of History + Teshar, Ancestor's Apostle + Kroxa, Titan of Death's Hunger + Lotus Petal + Tormod's Crypt

Loran, Disciple of History

Teshar, Ancestor's Apostle

Kroxa, Titan of Death's Hunger

Lotus Petal

Tormod's Crypt

How it works

1. Cast the artifact in your hand by paying 0.
2. Teshar triggers, returning Kroxa from your graveyard to the battlefield.
3. When Kroxa enters the battlefield, its first and second abilities and Loran trigger.
4. Resolve the first Kroxa trigger, sacrificing it.
5. Resolve the second Kroxa trigger, causing each opponent to discard a card and lose 3 life if they didn't discard a nonland card.
6. Resolve the Loran trigger, returning the other 0 cost artifact from your graveyard to your hand.
7. Resolve the spell cast in step 1.
8. Activate the 0 cost artifact by sacrificing it.
9. Repeat.