Teshar, Ancestor's Apostle + Aether Channeler + Mana Crypt + Goblin Bombardment

Teshar, Ancestor's Apostle

Aether Channeler

Mana Crypt

Goblin Bombardment

How it works

1. Activate Goblin Bombardment by sacrificing Aether Channeler, dealing 1 damage to any target.
2. Activate Mana Crypt by tapping it, adding CC.
3. Cast the other artifact with MV<=2 by paying at most 2.
4. Teshar triggers, returning Aether Channeler from your graveyard to the battlefield.
5. When Aether Channeler enters the battlefield, it triggers, returning Mana Crypt from the battlefield to your hand.
6. Activate Goblin Bombardment by sacrificing Aether Channeler, dealing 1 damage to any target.
7. Cast Mana Crypt by paying 0.
8. Teshar triggers, returning Aether Channeler from your graveyard to the battlefield.
9. When Aether Channeler enters the battlefield, it triggers, returning the other artifact from the battlefield to your hand.
10. Repeat.

This vintage-legal loop revolves around Teshar, Ancestor's Apostle, whose static ability continuously resurrects cheap creatures whenever you cast a historic spell. By casting cheap artifacts like Mana Crypt, you trigger Teshar to bring back Aether Channeler, which enters the battlefield to bounce your resources back to hand for re-casting. Finally, Goblin Bombardment provides the sacrificial outlet that converts this endless cycle of resurrection and bouncing into infinite damage for the win.