Mortuary + Falkenrath Noble + Bile Urchin + Gwenom, Remorseless

Mortuary

Falkenrath Noble

Bile Urchin

Gwenom, Remorseless

How it works

1. Activate Bile Urchin by sacrificing it.
2. When Bile Urchin dies, Mortuary and Falkenrath Noble trigger.
3. Resolve the Mortuary trigger, putting Bile Urchin from your graveyard onto the top of your library.
4. Resolve the Falkenrath Noble trigger, causing you to gain 1 life and target opponent to lose 1 life.
5. Resolve the Bile Urchin ability.
6. Cast Bile Urchin from the top of your library by paying 1 life.
7. Repeat.

This clever loop relies on Mortuary to intercept creatures as they hit the graveyard, immediately recycling them back to the top of your library. From there, Gwenom, Remorseless lets you recast that creature directly off the library, substituting its mana cost with a small payment of life thanks to its alternate casting ability. Meanwhile, Falkenrath Noble drains your opponents and pads your life total with every death, fueling the life you spend to recast Bile Urchin. The urchin itself provides the sacrifice outlet needed to set the whole engine in motion, letting you repeat this cycle endlessly until your opponents are drained completely dry.