Shepherd of the Cosmos + Blasting Station + Necrogen Communion

Shepherd of the Cosmos

Blasting Station

Necrogen Communion

How it works

1. Activate Blasting Station by tapping it and sacrificing Shepherd of the Cosmos.
2. When Shepherd of the Cosmos dies, Necrogen Communion triggers, returning Shepherd of the Cosmos from your graveyard to the battlefield.
3. When Shepherd of the Cosmos enters the battlefield, it and Blasting Station trigger.
4. Resolve the Blasting Station trigger, untapping it.
5. Resolve the Shepherd of the Cosmos trigger, returning Necrogen Communion from your graveyard to the battlefield attached to Shepherd of the Cosmos.
6. Resolve the Blasting Station ability from step 1, dealing 1 damage to any target.
7. Repeat.

This clever loop turns Shepherd of the Cosmos into an infinite ammunition engine by abusing its own graveyard-fetching enter-the-battlefield ability. When you sacrifice the Shepherd to Blasting Station, Necrogen Communion immediately steps in to drag the Shepherd right back from the grave to the battlefield. That new entry triggers Blasting Station to untap itself and prompts the Shepherd to fish Necrogen Communion back out of the graveyard to lock the loop in place, letting you repeatedly blast your opponents to ash.