Umbral Collar Zealot + Bloodsoaked Champion + Abzan Ascendancy + Pitiless Plunderer

Umbral Collar Zealot

Bloodsoaked Champion

Abzan Ascendancy

Pitiless Plunderer

How it works

1. Activate Umbral Collar Zealot by sacrificing Bloodsoaked Champion.
2. When Bloodsoaked Champion dies, Pitiless Plunderer and Abzan Ascendancy trigger, creating a creature token and a Treasure token.
3. Resolve the Umbral Collar Zealot ability.
4. Activate Umbral Collar Zealot by sacrificing the creature token.
5. When the creature token dies, Pitiless Plunderer triggers, creating a Treasure token.
6. Resolve the Umbral Collar Zealot ability.
7. Activate the Treasures by tapping and sacrificing them, adding 1.
8. Activate Bloodsoaked Champion by paying 1, returning it from your graveyard to the battlefield.
9. Repeat.

This loop transforms a simple recursion engine into a self-sustaining sacrifice machine, powered by the continuous death and rebirth of Bloodsoaked Champion. Pitiless Plunderer and Abzan Ascendancy act as the engine's vital economic and manufacturing centers: the Plunderer turns every fatality into raw mana through Treasure tokens, while the Ascendancy cushions the math by replacing fallen nontoken creatures with flying Spirit tokens. Meanwhile, Umbral Collar Zealot serves as the sacrificial outlet that keeps the gears turning and lets you surveil through your library. Because the mana generated by the Treasures comfortably covers the champion's raid cost to return from the graveyard, you can repeat this cycle indefinitely.