Mortuary + Bile Urchin + Embalmed Ascendant + Gwenom, Remorseless

Mortuary

Bile Urchin

Embalmed Ascendant

Gwenom, Remorseless

How it works

1. Activate Bile Urchin by sacrificing it.
2. When Bile Urchin dies, Mortuary and Embalmed Ascendant trigger.
3. Resolve the Mortuary trigger, putting Bile Urchin from your graveyard onto the top of your library.
4. Resolve the Embalmed Ascendant trigger, causing you to gain 1 life and each 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 turns a simple sacrifice into a perpetual life-drain engine by pairing a few clever triggers with the top-deck manipulation you need to keep going. When you sacrifice Bile Urchin, Mortuary immediately rescues it from the graveyard by placing it right back on top of your library. Meanwhile, Embalmed Ascendant provides the critical life-swing and fuels your max speed state when creatures die, working in tandem with Gwenom, Remorseless to let you recast the Urchin straight off the top of your library by paying life instead of mana.