Mortuary + Krark-Clan Ironworks + Memnite + Gwenom, Remorseless

Mortuary

Krark-Clan Ironworks

Memnite

Gwenom, Remorseless

How it works

1. Activate Krark-Clan Ironworks by sacrificing Memnite
2. When Memnite dies, Mortuary triggers, putting Memnite from your graveyard onto the top of your library.
3. Cast Memnite from the top of your library by paying 0 life.
4. Repeat.

This loop turns a free artifact creature into a relentless engine of arcane industry, fueled entirely by life instead of mana. By utilizing Gwenom, Remorseless to peer into the future and cast spells directly from the library, you can bypass normal resource restrictions, paying life rather than mana to play Memnite over and over again. As Memnite is repeatedly sacrificed to Krark-Clan Ironworks for a steady stream of colorless mana, Mortuary catches it on the way to the graveyard, instantly placing it back on top of your library to prime the next iteration.