The Ghoul, Gunslinger + Gravecrawler + Umbral Collar Zealot

The Ghoul, Gunslinger

Gravecrawler

Umbral Collar Zealot

How it works

1. Activate Umbral Collar Zealot by sacrificing Gravecrawler.
2. When Gravecrawler dies, The Ghoul triggers, causing you to get two rad counters and create a Treasure token.
3. Resolve the Umbral Collar Zealot ability.
4. Activate the Treasure by tapping and sacrificing it, adding .
5. Cast Gravecrawler from your graveyard by paying .
6. Repeat.

This elegant loop turns your graveyard into a perpetual motion machine, fueled by the relentless synergy between Gravecrawler and Umbral Collar Zealot. By feeding the persistent little Zombie to Umbral Collar Zealot, you fuel its surveil ability while sending the creature back to the graveyard. Because you still control a Zombie, Gravecrawler's static ability allows you to cast it right back out of your graveyard. To pay the casting cost, you simply crack the Treasure token generated each time by The Ghoul, Gunslinger's death trigger. This creates a self-sustaining cycle that endlessly repeats its sacrifice, cast, and radiation triggers.