Leonardo, Sewer Samurai + Solemnity + Lithatog + Phyrexian Walker

Leonardo, Sewer Samurai

Solemnity

Lithatog

Phyrexian Walker

How it works

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

This loop turns the zero-mana artifact creature Phyrexian Walker into an infinite sacrifice engine by leveraging Leonardo, Sewer Samurai to repeatedly cast it straight from the graveyard. While Leonardo would normally stamp these returning creatures with a finality counter, Solemnity’s global prohibition against counters completely bypasses that restriction to keep the Walker pristine. Meanwhile, Lithatog acts as the sacrificial outlet that feeds on the recycled automaton, converting each iteration into an endless stream of triggers and pumped-up stats.