Leonardo, Sewer Samurai + Solemnity + Megatog + Memnite

Leonardo, Sewer Samurai

Solemnity

Megatog

Memnite

How it works

1. Activate Megatog 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 clever loop is held together by Solemnity, whose static ability prevents any counters from ever being placed on creatures—meaning the finality counters that would normally exile your cast creatures are completely ignored. This lets Leonardo, Sewer Samurai continuously pull Memnite right back out of your graveyard for zero mana, fueling an endless stream of sacrifices to Megatog. Every iteration pumps your beast to cosmic proportions while milking infinite sacrifice, death, and entry triggers for whatever devastating payoff you desire.