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

Leonardo, Sewer Samurai

Solemnity

Krark-Clan Grunt

Ornithopter

How it works

1. Activate Krark-Clan Grunt 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 clever loop turns the unassuming Ornithopter into an endless sacrifice engine, fueled entirely by graveyard recursion and an absolute blanket on counters. Leonardo, Sewer Samurai opens the door to cast that tiny zero-mana flyer directly from your graveyard on your turn, while Solemnity steps in to completely bypass the finality counters that would normally exile it upon leaving. With the protection of Solemnity firmly in place, you can feed the Ornithopter to Krark-Clan Grunt over and over again, pumping the Grunt to astronomical proportions while generating an endless stream of sacrifice and death triggers.