Tideforce Elemental + Trench Behemoth + Scaled Herbalist

Tideforce Elemental

Trench Behemoth

Scaled Herbalist

How it works

1. Activate a land by tapping it, adding at least .
2. Activate Tideforce Elemental by paying and tapping it, untapping Scaled Herbalist.
3. Activate Trench Behemoth by returning the land from the battlefield to your hand, untapping it.
4. Activate Scaled Herbalist by tapping it, putting the land from your hand to the battlefield.
5. When the land enters the battlefield, Tideforce Elemental triggers, untapping it.
6. Repeat.

This engine relies on a clever loop of bouncing and replaying land to generate infinite landfall triggers, using Scaled Herbalist to drop the land straight from your hand back onto the battlefield. Trench Behemoth sets the stage by allowing you to return that land to your hand simply to untap itself, funding the necessary resource cycle. To keep the engine humming, Tideforce Elemental provides the critical untapping power for Scaled Herbalist; whenever your land re-enters, the Elemental's landfall ability untaps itself in response, resetting its tap ability so you can keep repeating the entire sequence.