Mortuary + Phyrexian Altar + Kobolds of Kher Keep + Gwenom, Remorseless

Mortuary

Phyrexian Altar

Kobolds of Kher Keep

Gwenom, Remorseless

How it works

1. Activate Phyrexian Altar 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. Cast Kobolds of Kher Keep from the top of your library by paying 0 life.
4. Repeat.

This cunning loop lets you turn a humble zero-mana creature into an endless engine of profit. By feeding Kobolds of Kher Keep into Phyrexian Altar, you generate a mana of any color while triggering Mortuary, which instantly recycles the tiny creature back to the top of your library. From there, Gwenom, Remorseless steps in to let you cast it right back off the top for free, completely bypassing its mana cost by paying zero life instead.