Ashnod's Altar + Blade of the Bloodchief + Puppeteer Clique + Putrid Goblin

Ashnod's Altar

Blade of the Bloodchief

Puppeteer Clique

Putrid Goblin

How it works

1. Activate Ashnod's Altar by sacrificing Puppeteer Clique, adding CC.
2. Puppeteer Clique dies, triggering its persist ability and Blade of the Bloodchief.
3. Resolve the Puppeteer Clique trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
4. Puppeteer Clique enters the battlefield, putting target creature from an opponent's graveyard onto the battlefield under your control until end of turn.
5. Resolve the Blade of the Bloodchief trigger, putting a +1/+1 counter on Putrid Goblin.
6. Equip Blade of the Bloodchief to Puppeteer Clique by paying 1.
7. Activate Ashnod's Altar by sacrificing Putrid Goblin, adding CC.
8. Putrid Goblin dies, triggering its persist ability and Blade of the Bloodchief.
9. Resolve Putrid Goblin's trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
10. Resolve the Blade of the Bloodchief trigger, putting a +1/+1 counter on Puppeteer Clique.
11. Equip Blade of the Bloodchief to Putrid Goblin by paying 1.
12. Repeat.

This loop turns a clever interplay of persist triggers and equipment management into a complete battlefield takeover. Ashnod's Altar acts as the engine, converting creatures into the colorless mana needed to repeatedly pay the equip cost for Blade of the Bloodchief, which in turn grows your creatures and cancels out their -1/-1 counters. By alternating sacrifices between Putrid Goblin and Puppeteer Clique—whose entry ability also raids your opponents' graveyards for extra bodies—you generate infinite sacrifices and death triggers.