Ashaya, Soul of the Wild, Stone-Seeder Hierophant, Walking Atlas, and Boros Garrison

Prerequisites

• Ashaya, Soul of the Wild on the battlefield
• Stone-Seeder Hierophant on the battlefield
• Walking Atlas on the battlefield
• Boros Garrison in hand
• Stone-Seeder Hierophant and Walking Atlas do not have summoning sickness

Steps

1. Activate Walking Atlas by tapping it, putting Boros Garrison onto the battlefield from your hand
2. Boros Garrison and Stone-Seeder Hierophant trigger
3. Resolve the Stone-Seeder Hierophant trigger, untapping it
4. Activate Stone-Seeder Hierophant by tapping it, untapping Walking Atlas
5. Resolve the Boros Garrison trigger, returning it to your hand
6. Repeat

Results

• Infinite landfall triggers