Mortuary + Skirk Prospector + Bolas's Citadel + Relic Vial

Mortuary

Skirk Prospector

Bolas's Citadel

Relic Vial

How it works

1. Activate Skirk Prospector by sacrificing it.
2. When Skirk Prospector dies, Mortuary and Relic Vial trigger.
3. Resolve the Mortuary trigger, putting Skirk Prospector from your graveyard onto the top of your library.
4. Resolve the Relic Vial trigger, causing you to gain 1 life and each opponent to lose 1 life.
5. Cast Skirk Prospector from the top of your library by paying 1 life.
6. Repeat.

This elegant loop turns a humble Goblin into an endless engine of sacrifice and survival. By leveraging Skirk Prospector to generate red mana and sacrifice itself, you trigger Mortuary to neatly recycle the creature straight back to the top of your library. From there, Bolas's Citadel allows you to recast the Prospector by paying life instead of mana, keeping the cycle spinning. Meanwhile, Relic Vial watches the constant procession of dying creatures to drain your opponents out of the game while padding your life total to fuel the Citadel's casting costs.