Teshar, Ancestor's Apostle + Aether Channeler + Mana Crypt + Phantom Train

Teshar, Ancestor's Apostle

Aether Channeler

Mana Crypt

Phantom Train

How it works

1. Activate Phantom Train by sacrificing Aether Channeler
2. Activate Mana Crypt by tapping it, adding CC.
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 Crypt from the battlefield to your hand.
6. Activate Phantom Train by sacrificing Aether Channeler
7. Cast Mana Crypt 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 vintage-legal loop hinges on Teshar, Ancestor's Apostle acting as your engine's heart, continually resurrecting Aether Channeler from the graveyard whenever you cast a historic spell. As Aether Channeler enters the battlefield, its trigger bounces your mana source or artifacts right back to your hand, fueling the mana generated by Mana Crypt while Phantom Train provides the crucial sacrifice outlet to feed the graveyard. By looping these triggers, you can endlessly recast your artifacts and creatures to generate infinite storm count, sacrifices, and massive +1/+1 counters.