Mortuary + Blasting Station + Kobolds of Kher Keep + Gwenom, Remorseless

Mortuary

Blasting Station

Kobolds of Kher Keep

Gwenom, Remorseless

How it works

1. Activate Blasting Station by tapping it and sacrificing Kobolds of Kher Keep
2. When Kobolds of Kher Keep dies, Mortuary triggers, putting Kobolds of Kher Keep from your graveyard onto the top of your library.
3. Resolve the Blasting Station ability.
4. Cast Kobolds of Kher Keep from the top of your library by paying 0 life.
5. When Kobolds of Kher Keep enters, Blasting Station triggers, untapping Blasting Station.
6. Repeat.

This loop turns free creature deployment into a lethal bombardment by exploiting the zero-mana cost of Kobolds of Kher Keep. When you sacrifice the kobold to Blasting Station, Mortuary steps in to instantly rescue it from the graveyard and place it right back on top of your library. From there, Gwenom, Remorseless lets you cast that top card by paying life instead of mana, and since the kobold costs zero, the alternative payment is completely free. Every time the creature re-enters the battlefield, Blasting Station untaps itself to ready for the next iteration, fueling an endless chain of sacrifices that peppers any target with infinite damage.