Beifong's Bounty Hunters + Gravecrawler + Woe Strider + Tiller Engine

Beifong's Bounty Hunters

Gravecrawler

Woe Strider

Tiller Engine

How it works

1. Activate Woe Strider by sacrificing Gravecrawler.
2. When Gravecrawler dies, Beifong's Bounty Hunters triggers, earthbending a land that can tap to produce at least .
3. Resolve the Woe Strider ability.
4. Activate Woe Strider by sacrificing the land.
5. When the land dies, Beifong's Bounty Hunters triggers, returning the land from your graveyard to the battlefield tapped.
6. When the land enters, Tiller Engine triggers, untapping the land.
7. Resolve the Woe Strider ability.
8. Activate the land by tapping it, adding at least .
9. Cast Gravecrawler from your graveyard by paying .
10. Repeat.

This clever loop turns our graveyard into a revolving door by using Gravecrawler's recursive nature alongside the sacrifice outlet provided by Woe Strider. Whenever Gravecrawler hits the bin, Beifong's Bounty Hunters springs into action to animate and pump our mana-producing land, letting us feed it right back into Woe Strider as a substitute victim. As that land goes down and bounces back through its own triggered return, Tiller Engine steps in to instantly untap it so we can harvest the black mana needed to recast Gravecrawler all over again.