Skittering Precursor + Sword of the Meek + Domri, Anarch of Bolas + Krark-Clan Ironworks

Skittering Precursor

Sword of the Meek

Domri, Anarch of Bolas

Krark-Clan Ironworks

How it works

1. Activate Krark-Clan Ironworks by sacrificing Sword of the Meek, adding CC.
2. Skittering Precursor triggers, creating a 0/1 Eldrazi Spawn creature token.
3. When the Eldrazi Spawn enters the battlefield as a 1/1 due to Domri, Sword of the Meek triggers, returning Sword of the Meek from your graveyard to the battlefield attached to the Eldrazi Spawn.
4. Repeat.

This loop turns an unassuming artifact into a relentless mana engine by leveraging the static buffs of Domri, Anarch of Bolas, which pumps your newly created Eldrazi Spawn up to 1/1s the moment they enter the battlefield. That crucial size adjustment is what triggers Sword of the Meek to leap straight from your graveyard and attach itself to the token, replacing the piece you just fed to Krark-Clan Ironworks for a pair of colorless mana. Meanwhile, Skittering Precursor sits back and watches the cycle, churning out a fresh Eldrazi Spawn every single time a nontoken permanent is sacrificed to fuel the ironworks.