Teshar, Ancestor's Apostle + Aether Channeler + Sol Ring + Goblin Bombardment

Teshar, Ancestor's Apostle

Aether Channeler

Sol Ring

Goblin Bombardment

How it works

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