Ashaya, Soul of the Wild + Stone-Seeder Hierophant + Arid Archway + PuPu UFO

Ashaya, Soul of the Wild

Stone-Seeder Hierophant

Arid Archway

PuPu UFO

How it works

1. Activate PuPu UFO by tapping it, putting Arid Archway from your hand onto the battlefield.
2. When Arid Archway enters, it and Stone-Seeder Hierophant trigger.
3. Resolve the Arid Archway trigger, returning it from the battlefield to your hand.
4. Resolve the Stone-Seeder Hierophant trigger, untapping it.
5. Activate Stone-Seeder Hierophant by tapping it, untapping PuPu UFO as it is a land due to Ashaya.
6. Repeat.

This clever loop relies on Ashaya, Soul of the Wild to turn all of your nontoken creatures—including Stone-Seeder Hierophant—into Forest lands, which makes them valid targets for the Hierophant's own untap ability. By utilizing PuPu UFO to repeatedly cheat Arid Archway into play from your hand, you trigger Arid Archway's self-bounce ability and Stone-Seeder Hierophant's landfall trigger simultaneously. Resolving these triggers lets you bounce Arid Archway back to your hand while untapping the Stone-Seeder Hierophant, which in turn untaps PuPu UFO so you can restart the cycle. The result is an infinite engine of entering lands that generates limitless landfall triggers to overwhelm your opponents.