Gravecrawler + Pitiless Plunderer + Yahenni, Undying Partisan

Gravecrawler

Pitiless Plunderer

Yahenni, Undying Partisan

How it works

1. Activate Yahenni by sacrificing Gravecrawler.
2. When Gravecrawler dies, Pitiless Plunderer triggers, creating a Treasure token.
3. Resolve the Yahenni ability.
4. Activate the Treasure token by tapping and sacrificing it, adding .
5. Cast Gravecrawler from your graveyard by paying .
6. Repeat.

This elegant loop turns Yahenni, Undying Partisan into a relentless engine by utilizing its free sacrifice ability to repeatedly send Gravecrawler to the graveyard. Because Pitiless Plunderer watches from the battlefield and generates a Treasure token every time a creature dies, you immediately harvest the mana needed to recast Gravecrawler right back onto the battlefield. This creates a perpetual cycle of sacrifices and returns, allowing you to easily rack up an endless stream of triggers and storm count.