Mortuary + Bile Urchin + Popular Egotist + Gwenom, Remorseless

Mortuary

Bile Urchin

Popular Egotist

Gwenom, Remorseless

How it works

1. Activate Bile Urchin by sacrificing it.
2. When Bile Urchin dies, Mortuary and Popular Egotist trigger.
3. Resolve the Mortuary trigger, putting Bile Urchin from your graveyard onto the top of your library.
4. Resolve the Popular Egotist 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 loop transforms a humble goblin into an engine of relentless attrition by turning the graveyard into a conveyor belt. When you sacrifice Bile Urchin to drain life, Mortuary immediately catches it on its way down and places it right back on top of your library. Meanwhile, Popular Egotist watches the sacrifice happen and triggers to drain the opponent yet again, turning every cycle into a double-dip of life loss. To close the loop, Gwenom, Remorseless grants you the ability to look at and cast cards from the top of your library, letting you pay life instead of mana to recast the Urchin—an expense effortlessly offset by Popular Egotist's life gain.