Mortuary + Bartolomé del Presidio + Kobolds of Kher Keep + Gwenom, Remorseless

Mortuary

Bartolomé del Presidio

Kobolds of Kher Keep

Gwenom, Remorseless

How it works

1. Activate Bartolomé del Presidio by 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 Bartolomé del Presidio ability.
4. Cast Kobolds of Kher Keep from the top of your library by paying 0 life.
5. Repeat.

This clever loop lets you endlessly sacrifice and recast zero-mana creatures by turning your library into a recursive engine. You use Bartolomé del Presidio to feed on Kobolds of Kher Keep, growing larger with each iteration while Mortuary cleanly catches the dying kobold and places it right back on top of your library. From there, Gwenom, Remorseless steps in to let you cast that freshly returned card straight from the library, smoothly substituting its mana value with a zero-life payment to keep the cycle spinning infinitely.