Patchwork Crawler + Trench Behemoth + Scaled Herbalist

Patchwork Crawler

Trench Behemoth

Scaled Herbalist

How it works

1. Activate Patchwork Crawler using Scaled Herbalist's ability by tapping it, putting a land from your hand onto the battlefield.
2. If the land is mana-producing and enters the battlefield untapped, you may activate it by tapping it, adding at least 1.
3. Activate Patchwork Crawler using Trench Behemoth's ability by returning the land from the battlefield to your hand, untapping Patchwork Crawler.
4. Repeat.

This clever engine hinges on Patchwork Crawler devouring Trench Behemoth and Scaled Herbalist in the graveyard to inherit their activated abilities, effectively turning your creature into a self-contained land-bouncing powerhouse. By using the copied Trench Behemoth ability to return a land to your hand and untap Patchwork Crawler, you clear the way to immediately redeploy that land using the copied Scaled Herbalist ability. If the land enters untapped, you can tap it for mana along the way, generating infinite landfall triggers and an infinite mana loop to fuel the rest of your strategy.