Leonardo, Sewer Samurai + Solemnity + Krark-Clan Ironworks + Ornithopter

Leonardo, Sewer Samurai

Solemnity

Krark-Clan Ironworks

Ornithopter

How it works

1. Activate Krark-Clan Ironworks 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 is a masterclass in turning a restriction into infinite mana, beautifully orchestrated by **Solemnity**. Because Solemnity prevents counters of any kind from being placed on permanents, it neatly bypasses the finality counter that **Leonardo, Sewer Samurai** would normally impose when you recast a creature from your graveyard. With that drawback neutralized, you can repeatedly cast the free artifact creature **Ornithopter** straight from your graveyard thanks to Leonardo's static recursion ability. Finally, feeding that same **Ornithopter** to **Krark-Clan Ironworks** converts each iteration into a pair of colorless mana, fueling a boundless engine of sacrifices, storm count, and triggers.