Eternal Scourge + Young Deathclaws + Crystalline Crawler + Viscera Seer + Shang-Chi, Martial Mentor

Eternal Scourge

Young Deathclaws

Crystalline Crawler

Viscera Seer

Shang-Chi, Martial Mentor

How it works

1. Activate Eternal Scourge's scavenge ability, granted to it by Young Deathclaws, by paying 3 and exiling Eternal Scourge from your graveyard, putting six +1/+1 counters on Crystalline Crawler due to Shang-Chi.
2. Activate Crystalline Crawler six times by removing six +1/+1 counters from it, adding 6.
3. Cast Eternal Scourge from exile by paying 3.
4. Activate Viscera Seer by sacrificing Eternal Scourge.
5. Repeat.

This clever loop transforms Eternal Scourge into a self-sustaining mana and sacrifice engine by leveraging Young Deathclaws to grant the Scourge a scavenge ability, turning its own mana cost into a profit. Crystalline Crawler acts as the primary battery, converting the resulting counters into raw mana while Shang-Chi, Martial Mentor supercharges the process by doubling every counter placed upon the Crawler. Finally, Viscera Seer provides a zero-cost sacrifice outlet that conveniently dumps the Scourge back into the graveyard, allowing Eternal Scourge to immediately recast itself from exile and start the cycle anew.