Teshar, Ancestor's Apostle + Aether Channeler + Mana Vault + Carrion Feeder

Teshar, Ancestor's Apostle

Aether Channeler

Mana Vault

Carrion Feeder

How it works

1. Activate Carrion Feeder by sacrificing Aether Channeler, putting a +1/+1 counter on it.
2. Activate Mana Vault by tapping it, adding CCC.
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 Vault from the battlefield to your hand.
6. Activate Carrion Feeder by sacrificing Aether Channeler, putting a +1/+1 counter on it.
7. Cast Mana Vault 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 intricate loop centers around Teshar, Ancestor's Apostle, whose historic-spell trigger acts as your primary engine for resurrecting cheap creatures from the graveyard. You feed Aether Channeler to Carrion Feeder to send the Bird wizard back to the yard, then recast your mana-producing artifacts to trigger Teshar all over again. Aether Channeler's entry trigger does double duty, neatly bouncing either Mana Vault or your secondary artifact back to your hand so you can replay them indefinitely. Meanwhile, the explosive mana from Mana Vault conveniently pays for your spells, letting you fuel the entire recursive cycle without running dry.