Teshar, Ancestor's Apostle + Aether Channeler + Sol Ring + Altar of Dementia

Teshar, Ancestor's Apostle

Aether Channeler

Sol Ring

Altar of Dementia

How it works

1. Activate Altar of Dementia by sacrificing Aether Channeler, causing target player to mill cards equal to Aether Channeler's power.
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 Altar of Dementia by sacrificing Aether Channeler, causing target player to mill cards equal to Aether Channeler's power.
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 loop is masterminded by Teshar, Ancestor's Apostle, whose static ability rewards every historic spell you cast by pulling a low-cost creature right back out of your graveyard. To fuel this engine endlessly, Aether Channeler enters the battlefield to repeatedly bounce and replay your fast mana like Sol Ring or another cheap artifact, resetting the historic triggers. Meanwhile, Altar of Dementia turns this revolving door of creatures into a deadly weapon, sacrificing Aether Channeler each cycle to mill out your opponents piece by piece.