Leonardo, Sewer Samurai + Solemnity + Extruder + Ornithopter

Leonardo, Sewer Samurai

Solemnity

Extruder

Ornithopter

How it works

1. Activate Extruder by sacrificing Ornithopter.
2. Cast Ornithopter from your graveyard by paying 0. It will not enter with a finality counter on it due to Solemnity.
3. Repeat.

This loop turns a humble mechanical cycle into an engine of endless power, orchestrated from the graveyard. Leonardo, Sewer Samurai provides the crucial recursion by letting you cast your tiny creatures directly from the graveyard during your turn, while Solemnity steps in to rewrite the rules of reality so those creatures bypass their intended finality counters and Extruder dodges any unwanted baggage. By repeatedly sacrificing Ornithopter to Extruder's activation cost and recasting the free artifact flyer back through Leonardo, Sewer Samurai, you generate boundless death triggers and scaling bonuses while keeping the loop completely self-sustaining.