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

Teshar, Ancestor's Apostle

Aether Channeler

Mana Vault

Goblin Bombardment

How it works

1. Activate Goblin Bombardment by sacrificing Aether Channeler, dealing 1 damage to any target.
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 Goblin Bombardment by sacrificing Aether Channeler, dealing 1 damage to any target.
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 crafty loop centers on Teshar, Ancestor's Apostle, whose ability triggers whenever you cast a historic spell to continuously resurrect a low-mana creature like Aether Channeler from your graveyard. As Aether Channeler enters the battlefield, its versatility shines by bouncing your fast mana or artifacts back to your hand, fueling the loop and letting you recast them as historic spells. Mana Vault provides the explosive colorless mana needed to pay for these artifacts on demand, while Goblin Bombardment supplies a reliable sacrifice outlet to clear out Aether Channeler and turn every iteration into lethal damage.