Teshar, Ancestor's Apostle + Aether Channeler + Sol Ring + Yahenni, Undying Partisan

Teshar, Ancestor's Apostle

Aether Channeler

Sol Ring

Yahenni, Undying Partisan

How it works

1. Activate Yahenni by sacrificing Aether Channeler, giving Yahenni indestructible until end of turn.
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 Yahenni by sacrificing Aether Channeler, giving Yahenni indestructible until end of turn.
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.