Tideforce Elemental, Trench Behemoth, and PuPu UFO

Prerequisites

• Tideforce Elemental on the battlefield
• Trench Behemoth on the battlefield
• PuPu UFO on the battlefield

Steps

1. Activate a land by tapping it, adding at least
2. Activate Tideforce Elemental by paying and tapping it, untapping PuPu UFO
3. Activate Trench Behemoth by returning the land from the battlefield to your hand, untapping it
4. Activate PuPu UFO 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

Results

• Infinite landfall triggers