Teshar, Ancestor's Apostle + Aether Channeler + Sol Ring + Viscera Seer

Teshar, Ancestor's Apostle

Aether Channeler

Sol Ring

Viscera Seer

How it works

1. Activate Viscera Seer by sacrificing Aether Channeler, causing you to scry 1.
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 Viscera Seer by sacrificing Aether Channeler, causing you to scry 1.
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.

This ingenious loop uses Teshar, Ancestor's Apostle as the ultimate engine, reviving Aether Channeler from the graveyard each time you cast a historic spell. Viscera Seer acts as the mandatory sacrifice outlet that sends Aether Channeler back to the graveyard to feed Teshar's resurrection trigger. Meanwhile, Sol Ring provides the mana needed to recast your low-cost historic artifacts over and over, while Aether Channeler's entry trigger conveniently bounces those artifacts or the Sol Ring right back to your hand to keep the chain going.