Leonardo, Sewer Samurai + Solemnity + Goblin Bombardment + Memnite

Leonardo, Sewer Samurai

Solemnity

Goblin Bombardment

Memnite

How it works

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

This loop turns our tiny artifact friend into an unstoppable engine of destruction by leveraging Leonardo, Sewer Samurai to endlessly recast it from the graveyard. The magic truly happens thanks to Solemnity, whose static ability prevents counters from ever being placed on our creatures—bypassing the finality counters that would normally exile Leonardo's recursion targets. Finally, Goblin Bombardment provides the necessary outlet to sacrifice Memnite over and over again, converting our infinite loop into a torrent of lethal damage.