Mortuary + Dross Harvester + Wild Cantor + Gwenom, Remorseless

Mortuary

Dross Harvester

Wild Cantor

Gwenom, Remorseless

How it works

1. Activate Wild Cantor by sacrificing it.
2. When Wild Cantor dies, Mortuary and Dross Harvester trigger.
3. Resolve the Mortuary trigger, putting Wild Cantor from your graveyard onto the top of your library.
4. Resolve the Dross Harvester trigger, causing you to gain 2 life
5. Cast Wild Cantor from the top of your library by paying 1 life.
6. Repeat.

This clever loop turns a humble mana-dork into a self-sustaining engine by turning your library into a recursive deck. When you sacrifice Wild Cantor for mana, Mortuary catches it on the way to the graveyard and neatly places it back on top of your library. Meanwhile, Dross Harvester offsets the life you pay to cast Wild Cantor off the top of your library, since Gwenom, Remorseless lets you cast spells from the top by paying life instead of mana.